Issue 1, 1998, volume 41
Contents
Reviews of topical problems
Zarembo K L, Makeenko Yu M “An introduction to matrix superstring models” Phys. Usp. 41 1–23 (1998)
Tonkonogov M P “Dielectric spectroscopy of hydrogen-bonded crystals, and proton relaxation” Phys. Usp. 41 25–48 (1998)
Gusev Aleksandr I “Effects of the nanocrystalline state in solids” Phys. Usp. 41 49–76 (1998)
Physics of our days
Shvartsburg Aleksandr B “Single-cycle waveforms and non-periodic waves in dispersive media (exactly solvable models)” Phys. Usp. 41 77–94 (1998)
Methodological notes
Ingel’ Lev Kh “Self-action of a heat-releasing admixture in a liquid medium” Phys. Usp. 41 95–99 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 100–100 (1998)
Personalia
Kadyshevskii Vladimir G, Logunov Anatolii A, Matveev Viktor A, Rubakov Valerii A, Savrin V I, Slavnov A A, Trukhin V I, Khrustalev O A, Shirkov D V “In memory of Nikita Alekseevich Sveshnikov” Phys. Usp. 41 101–102 (1998)
Galeev A A, Zatsepin G T, Panasyuk M I, Sagdeev Roal’d Z, Sadovnichii V A, Sosnovets E N “In memory of Boris Arkad’evich Tverskoi” Phys. Usp. 41 103–104 (1998)
Issue 2, 1998, volume 41
Contents
Conferences and symposia
Gantmakher Vsevolod F, Feigel’man M V “Mesoscopic and strongly correlated electron systems
’Chernogolovka 97′ Mesoscopic unification” Phys. Usp. 41 105–108 (1998)
Timofeev Vladislav B, Larionov A V, Zeman J, Martinez G, Hvam J, Birkedal D, Soerensen K “Interwell radiative recombination of a 2D electron gas in electrically biased double quantum wells” Phys. Usp. 41 109–112 (1998)
Finkelstein G, Shtrikman H, Bar-Joseph I “Shakeup processes of a two-dimensional electron gas in GaAs/AlGaAs quantum wells at high magnetic fields” Phys. Usp. 41 112–114 (1998)
Kulakovskii V D, Bayer M, Michel M, Forchel A, Gutbrod T, Faller F “Excitonic molecules in InGaAs/GaAs quantum dots” Phys. Usp. 41 115–118 (1998)
Butov L V “Anomalous transport and luminescence of indirect excitons in coupled quantum wells” Phys. Usp. 41 118–122 (1998)
Ihn T, Thornton A, Itskevich I E, Beton P H, Martin P, Moriarty P, Muller E, Nogaret A, Main P C, Eaves L, Henini M “A self-assembled InAs quantum dot used as a quantum microscope looking into a two-dimensional electron gas” Phys. Usp. 41 122–125 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 126–126 (1998)
Conferences and symposia
Dorozhkin Sergei I, Dorokhova M O, Haug R J, Ploog K “Capacitance spectroscopy of the fractional quantum Hall effect” Phys. Usp. 41 127–131 (1998)
Iordanskii S V “Non-singular vortex-skyrmions in a two-dimensional electron system” Phys. Usp. 41 131–134 (1998)
Apel W, Bychkov Yu A “Microscopic derivation of the effective Lagrangian for skyrmions in an interacting two-dimensional electron gas at small g-factor” Phys. Usp. 41 134–138 (1998)
Dolgopolov Valerii T, Shashkin Aleksandr A, Aristov A V, Schmerek D, Hansen W, Kotthaus J P, Halland M “Nonlinear screening, and spin and cyclotron gaps in the 2D electron gas of GaAs/AlGaAs heterojunctions” Phys. Usp. 41 138–141 (1998)
Levitov L S, Shitov A V, Halperin B I “Effective action and Green’s function for a compressible QH edge state” Phys. Usp. 41 141–145 (1998)
Lesovik G B “Recording zero-point current and voltage fluctuations” Phys. Usp. 41 145–149 (1998)
Blanter Ya M, van Langen S A, Buttiker M “Exchange effects in shot noise in multi-terminal devices” Phys. Usp. 41 149–152 (1998)
Vina L, Potemski M, Wang W I “Signatures of quantum chaos in the magneto-excitonic spectrum of quantum wells” Phys. Usp. 41 153–156 (1998)
Fal’ko V I “Image of local density of states in differential conductance fluctuations in the resonance tunneling between disordered metals” Phys. Usp. 41 156–159 (1998)
Koenig J, Schoeller H, Schon G “Resonant tunneling through a single-electron transistor” Phys. Usp. 41 159–164 (1998)
Kvon Z D, Olshanetskii E B, Gusev G M, Portal J C, Maude D K “Coulomb-like mesoscopic conductance fluctuations in a 2D electron gas near the filling factor ν = 1/2” Phys. Usp. 41 164–166 (1998)
van der Zant H S, Mantel O C, Rutten P W, Dekker C “Electrical transport through micro-fabricated charge-density-wave structures” Phys. Usp. 41 167–171 (1998)
Oreg Y, Finkel’stein A M “Flow diagram for impurity scattering in Tomonaga-Luttinger liquids” Phys. Usp. 41 171–175 (1998)
Hansen W, Schmerek D, Steinebach C “Ground states in one-dimensional electron systems” Phys. Usp. 41 175–178 (1998)
Gorelik L, Kulinich S, Gal’perin Yu I, Shekhter R I, Jonson M “Pumping of energy into a mesoscopic ring. Exactly solvable model” Phys. Usp. 41 178–182 (1998)
Pascaud M, Montambaux G “Interference effects in mesoscopic disordered rings and wires” Phys. Usp. 41 182–186 (1998)
Gershenson M E, Khavin Yu B, Bogdanov A L “Electrons in quasi-one-dimensional conductors: from high-temperature diffusion to low-temperature hopping” Phys. Usp. 41 186–189 (1998)
Volkov A F, Pavlovskii V V “Phase-coherent phenomena in S-N-S structures” Phys. Usp. 41 191–195 (1998)
Spivak B, Zyuzin A “Sign memory of the Ruderman-Kittel interaction in disordered metals and magnetic coupling in mesoscopic metal/ferromagnet layered systems” Phys. Usp. 41 195–197 (1998)
Ivanov D A, Feigel’man M V “Coulomb effects in a ballistic one-channel S-S-S device” Phys. Usp. 41 197–201 (1998)
Soldatov Eugene S, Khanin Vladimir V, Trifonov Artem S, Gubin Sergei P, Kolesov V V, Presnov D E, Yakovenko S A, Khomutov G V, Korotkov A N “Room temperature molecular single-electron transistor” Phys. Usp. 41 202–204 (1998)
Krupenin V A, Lotkhov S V, Scherer H, Zorin A B, Ahlers F-J, Niemeyer J, Wolf H “Sensing of dynamic charge states using single-electron tunneling transistors” Phys. Usp. 41 204–206 (1998)
Shitov A V, Lee P A, Levitov L S “Localization of quasiparticles in an NS structure” Phys. Usp. 41 207–210 (1998)
Pudalov V M “The metal-insulator transition in a two-dimensional system at zero magnetic field” Phys. Usp. 41 211–214 (1998)
Gantmakher Vsevolod F “Superconductor-insulator transitions and insulators with localized pairs” Phys. Usp. 41 214–217 (1998)
Gold A “Superconductor-insulator transition in the disordered Bose condensate: a discussion of the mode-coupling approach” Phys. Usp. 41 217–220 (1998)
Frydman A, Price E P, Dynes R C “Mesoscopic phenomena in disordered superconductors” Phys. Usp. 41 220–223 (1998)
Lavrov A N, Gantmakher Vsevolod F “Low-temperature resistivity of underdoped cuprates” Phys. Usp. 41 223–226 (1998)
Zaikin A D, Golubev D S, van Otterlo A, Zimanyi G T “Quantum fluctuations and dissipation in thin superconducting wires” Phys. Usp. 41 226–230 (1998)
Issue 3, 1998, volume 41
Contents
Reviews of topical problems
Novikov S P, Mal’tsev Andrei Ya “Topological phenomena in normal metals” Phys. Usp. 41 231–239 (1998)
Zeytounian R Kh “The Benard-Marangoni thermocapillary-instability problem” Phys. Usp. 41 241–267 (1998)
Olemskoi A I “Theory of stochastic systems with singular multiplicative noise” Phys. Usp. 41 269–301 (1998)
Conferences and symposia
Rautian Sergei G “XI International Vavilov conference on nonlinear optics (Akademgorodok, Novosibirsk, June 24-28, 1997)” Phys. Usp. 41 303–304 (1998)
Personalia
Baldin A M, Vladimirov V S, Kadyshevskii Vladimir G, Logunov Anatolii A, Matveev Viktor A, Ovsyannikov L V, Sadovnichii V A, Slavnov A A, Tavkhelidze A N, Trutnev Yu A, Filippov A T “Dmitrii Vasil’evich Shirkov (on his seventieth birthday)” Phys. Usp. 41 305–306 (1998)
Letters to the editors
Ginzburg Vitalii Lazarevich “On heat transfer (heat conduction) and the thermoelectric effect in the superconducting state” Phys. Usp. 41 307–311 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 312–312 (1998)
Issue 4, 1998, volume 41
Contents
Reviews of topical problems
Nechaev S K “Problems of probabilistic topology: the statistics of knots and non-commutative random walks” Phys. Usp. 41 313–347 (1998)
Zhdanov V M, Roldugin Vyacheslav I “Non-equilibrium thermodynamics and kinetic theory of rarefied gases” Phys. Usp. 41 349–378 (1998)
Datsyuk V V, Izmailov Igor A, Kochelap V A “Vibrational relaxation of excimers” Phys. Usp. 41 379–402 (1998)
Methodological notes
Lakhno Viktor D “Translation invariance and the problem of the bipolaron” Phys. Usp. 41 403–406 (1998)
Personalia
Ansel’m A A, Ginzburg Vitalii Lazarevich, Dokshitser Yu L, Dyatlov I T, Zakharov Vladimir E, Ioffe Boris L, Lipatov Lev N, Nikolaev N N, Okun Lev B, Petrov Yu V, Ter-Martirosyan K A, Khalatnikov Isaak M “In memory of Vladimir Naumovich Gribov” Phys. Usp. 41 407–408 (1998)
Alimov V A, Gaponov-Grekhov Andrei V, Ginzburg Vitalii Lazarevich, Zheleznyakov V V, Zverev V A, Mityakov Nikolai A, Rapoport V O, Rakhlin A V, Talanov V I, Uryadov V P, Frolov Valerii P, Sheiner O A “In memory of Lev Mikhailovich Erukhimov” Phys. Usp. 41 409–410 (1998)
Bibliography
Olemskoi A I “The Fokker-Planck equation” Phys. Usp. 41 411–416 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 417–417 (1998)
Issue 5, 1998, volume 41
Contents
Reviews of topical problems
Anisovich Vladimir V “The lightest scalar glueball” Phys. Usp. 41 419–439 (1998)
Suslov Igor’ M “Development of a (4-ε)-dimensional theory for the density of states of a disordered system near the Anderson transition” Phys. Usp. 41 441–467 (1998)
Delone N B, Krainov V P “Tunneling and barrier-suppression ionization of atoms and ions in a laser radiation field” Phys. Usp. 41 469–485 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 486–486 (1998)
From the history of physics
Bolotovskii Boris M, Vavilov Yu N, Kirkin A N “Sergei Ivanovich Vavilov — the man and the scientist: a view from the threshold of the 21st century” Phys. Usp. 41 487–504 (1998)
Methodological notes
Mazets I E “Kinetic equation including wave function collapses” Phys. Usp. 41 505–507 (1998)
Shvilkin B N “On measuring the Debye radius in an unstable gas discharge plasma” Phys. Usp. 41 509–510 (1998)
Conferences and symposia
Kashkarov P K, Kamenev B V, Konstantinova E A, Efimova A I, Pavlikov A V, Timoshenko V Yu “Dynamics of nonequilibrium charge carriers in silicon quantum wires” Phys. Usp. 41 511–515 (1998)
Pulinets S A, Khegai V V, Boyarchuk K A, Lomonosov A M “The atmospheric electric field as a source of variability in the ionosphere” Phys. Usp. 41 515–522 (1998)
Bibliography
Letokhov V S “Principles of nonlinear optical spectroscopy” Phys. Usp. 41 523–523 (1998)
Issue 6, 1998, volume 41
Contents
Special issue
Khalatnikov Isaak M, Kamenshchik A Yu “Singularity, initial conditions and quantum tunneling in modern cosmology” Phys. Usp. 41 525–542 (1998)
Azbel’ M Ya “Time, tunneling and turbulence” Phys. Usp. 41 543–552 (1998)
Okun Lev B “Current status of elementary particle physics” Phys. Usp. 41 553–557 (1998)
Danilov Mikhail V “Search for CP violation in B-meson decays” Phys. Usp. 41 559–568 (1998)
Pitaevskii Lev P “Bose-Einstein condensation in magnetic traps. Introduction to the theory” Phys. Usp. 41 569–580 (1998)
Andreev Aleksandr F “Superfluidity, superconductivity and magnetism in mesoscopics” Phys. Usp. 41 581–588 (1998)
Gor’kov L P “Lattice and magnetic effects in doped manganites” Phys. Usp. 41 589–594 (1998)
Ioffe L B, Millis A J “Non-Fermi-liquid metals” Phys. Usp. 41 595 (1998)
Abrikosov A A “Resonant tunneling in high-Tc superconductors” Phys. Usp. 41 605–616 (1998)
From the history of physics
Feinberg Evgenii L “A wonderful story about a remarkable paper by Landau” Phys. Usp. 41 617–620 (1998)
“Complete list of L D Landau’s works” Phys. Usp. 41 621–623 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 624–624 (1998)
Bibliography
Krainov V P “Dynamical and informational aspects of physical systems” Phys. Usp. 41 625–626 (1998)
Issue 7, 1998, volume 41
Contents
Reviews of topical problems
Gukov S G “Introduction to string dualities” Phys. Usp. 41 627–638 (1998)
Klushin L I, Skvortsov A M, Gorbunov A A “An exactly solvable model for first- and second-order transitions” Phys. Usp. 41 639–649 (1998)
Illenberger E, Smirnov Boris M “Electron attachment to free and bound molecules” Phys. Usp. 41 651–685 (1998)
Ptitsyna N G, Villoresi G, Dorman L I, Iucci N, Tyasto Marta I “Natural and man-made low-frequency magnetic fields as a potential health hazard” Phys. Usp. 41 687–709 (1998)
Conferences and symposia
Trapeznikov V A “Electron spectroscopy of small radiation doses” Phys. Usp. 41 711–717 (1998)
Zhdanov Gleb S, Libenson M N, Martsinovskii G A “Optics in the diffraction limit: principles, results, and problems” Phys. Usp. 41 719–722 (1998)
Zabrodskii Andrei Georgievich “Coulomb gap and metal-insulator transitions in doped semiconductors” Phys. Usp. 41 722–726 (1998)
Reznikov A E “Superwideband communication systems: characteristics and applications” Phys. Usp. 41 727–729 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 730–730 (1998)
Personalia
Balakin V E, Barkov L M, Dikanskii N S, Dimov Gennadii I, Kruglyakov Eduard P, Kulipanov Gennadii N, Meshkov Igor’ N, Parkhomchuk V V, Sidorov Vladimir A, Skrinskii A N “Boris Valerianovich Chirikov (on his seventieth birthday)” Phys. Usp. 41 731–732 (1998)
Andreev Aleksandr F, Afanas’ev Aleksandr Mikhailovich, Belyaev Spartak T, Velikhov Evgenii Pavlovich, Ginzburg Vitalii Lazarevich, Dykhne Aleksandr M, Kadomtsev Boris B, Maksimov Leonid A, Rumyantsev Aleksandr Yu, Chernoplekov Nikolai A “Yurii Moiseevich Kagan (on his seventieth birthday)” Phys. Usp. 41 733–734 (1998)
Issue 8, 1998, volume 41
Contents
Reviews of topical problems
Nemov S A, Ravich Yu I “Thallium dopant in lead chalcogenides: investigation methods and peculiarities” Phys. Usp. 41 735–759 (1998)
Gasparyan P D, Starikov F A, Starostin Andrei N “Angular divergence and spatial coherence of X-ray laser radiation” Phys. Usp. 41 761–792 (1998)
Brysev A P, Krutyanskii L M, Preobrazhenskii V L “Wave phase conjugation of ultrasonic beams” Phys. Usp. 41 793–805 (1998)
Physics of our days
Gershberg Roald E “Flaring red dwarf stars: news from Crimea” Phys. Usp. 41 807–814 (1998)
Tsytovich Vadim N, Winter J “On the role of dust in fusion devices” Phys. Usp. 41 815–822 (1998)
Methodological notes
Fargion D, Salis A “Inverse Compton scattering off black body radiation in high energy physics and gamma (MeV-TeV) astrophysics” Phys. Usp. 41 823–829 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 830–830 (1998)
Conferences and symposia
Nagaev E L “Magnetoimpurity theory of colossal magnetoresistance materials” Phys. Usp. 41 831–834 (1998)
Bonch-Bruevich A M, Vartanyan T A, Przhibel’skii S G, Khromov V V “Photodetachment of surface atoms of metals” Phys. Usp. 41 834–837 (1998)
Personalia
Zharinov A A, Kadomtsev Boris B, Kogan V I, Martynenko Yu V, Smirnov Boris M, Ter-Martirosyan K A, Chibisov Mikhail I, Shafranov Vitalii D “In memory of Oleg Borisovich Firsov” Phys. Usp. 41 839–840 (1998)
Goryachev V D, Goshchitsky B N, Zaluzhny A G, Matveev A I, Mironov V A, Suvorov A L, Trushin Yu V “In memory of Vladislav Vladimirovich Kirsanov” Phys. Usp. 41 841–842 (1998)
Issue 9, 1998, volume 41
Contents
From the ediorial board
Aksenteva Maria Sergeevna “In memory of Boris Borisovich Kadomtsev” Phys. Usp. 41 842–842 (1998)
Reviews of topical problems
Trunin Mikhail R “Surface impedance of HTSC single crystals in the microwave band” Phys. Usp. 41 843–863 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 864–864 (1998)
Reviews of topical problems
Kamilov Ibragimkhan K, Aliev Kh K “Ultrasonic studies of the critical dynamics of magnetically ordered crystals” Phys. Usp. 41 865–884 (1998)
Klyshko D N “Basic quantum mechanical concepts from the operational viewpoint” Phys. Usp. 41 885–922 (1998)
Menskii M B “Decoherence and the theory of continuous quantum measurements” Phys. Usp. 41 923–940 (1998)
Methodological notes
Hovsepyan Yu I “Some notes on the relativistic Doppler effect” Phys. Usp. 41 941–944 (1998)
Issue 10, 1998, volume 41
Contents
Reviews of topical problems
Zakharov A F, Sazhin Mikhail V “Gravitational microlensing” Phys. Usp. 41 945–982 (1998)
Kukushkin Sergei A, Osipov A V “Thin-film condensation processes” Phys. Usp. 41 983–1014 (1998)
Latyshev A V, Aseev A L “Monatomic steps on silicon surfaces” Phys. Usp. 41 1015–1023 (1998)
Physics of our days
Shnoll S E, Kolombet V A, Pozharskii E V, Zenchenko T A, Zvereva I M, Konradov Alexander A “Realization of discrete states during fluctuations in macroscopic processes” Phys. Usp. 41 1025–1035 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 1036–1036 (1998)
Conferences and symposia
Zvezdin Anatolii K, Lubashevskii I A, Levitin R Z, Platonov V V, Tatsenko O M “Phase transitions in megagauss magnetic fields” Phys. Usp. 41 1037–1042 (1998)
Personalia
Armand N A, Gulyaev Yurii V, Devyatkov N D, Migulin V V “Vladimir Aleksandrovich Kotel’nikov (on his ninetieth birthday)” Phys. Usp. 41 1043–1044 (1998)
Bibliography
Vavilov V S “Handbook of industrial diamonds and diamond films” Phys. Usp. 41 1045–1046 (1998)
Zakharova Elena V “New books on physics and associated fields” Phys. Usp. 41 1047–1048 (1998)
Issue 11, 1998, volume 41
Contents
Reviews of topical problems
Morozov A I, Savel’ev V V “On Galateas — magnetic traps with plasma-embedded conductors” Phys. Usp. 41 1049–1089 (1998)
Bezmel’nitsyn V N, Eletskii Aleksandr V, Okun’ M V “Fullerenes in solutions” Phys. Usp. 41 1091–1114 (1998)
Ivanitskii Genrikh R, Medvinskii Aleksandr B, Deev A A, Tsyganov M A “From Maxwell’s demon to the self-organization of mass transfer processes in living systems” Phys. Usp. 41 1115–1126 (1998)
Topical problems
Putvinskii S V “Can the future world energy system be free of nuclear fusion?” Phys. Usp. 41 1127–1137 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 1138–1138 (1998)
From the history of physics
Feoktistov L P “Thermonuclear detonation” Phys. Usp. 41 1139–1147 (1998)
From the current literature
Achasov N N “On the nature of the a0(980) and f0(980) scalar mesons” Phys. Usp. 41 1149–1153 (1998)
Personalia
Velikhov Evgenii Pavlovich, Ginzburg Vitalii Lazarevich, Gaponov-Grekhov Andrei V, Dykhne Aleksandr M, Keldysh L V, Klimontovich Yu L, Kogan V I, Menskii M B, Pitaevskii Lev P, Fortov Vladimir E, Chernoplekov Nikolai A, Shafranov Vitalii D “In memory of Boris Borisovich Kadomtsev” Phys. Usp. 41 1155–1156 (1998)
Issue 12, 1998, volume 41
Contents
Reviews of topical problems
Fleishman G D, Mel’nikov V F “Millisecond solar radio spikes” Phys. Usp. 41 1157–1189 (1998)
Turov Evgenii A, Kolchanov A V, Men’shenin Vladimir V, Mirsaev I F, Nikolaev Vladimir V “Magnetodynamics of antiferromagnets” Phys. Usp. 41 1191–1198 (1998)
Methodological notes
Oraevskii A N “Superluminal waves in amplifying media” Phys. Usp. 41 1199–1209 (1998)
Volkov P K “Similarity in problems related to zero-gravity hydromechanics” Phys. Usp. 41 1211–1217 (1998)
Mikaelyan M A “Methodological aspects of the thermodynamics of dielectrics” Phys. Usp. 41 1219–1227 (1998)
Physics news on the internet
Eroshenko Yurii N “Physics news on the Internet (based on electronic preprints)” Phys. Usp. 41 1228–1228 (1998)
From the history of physics
Fabelinskii Immanuil L “Seventy years of combination (Raman) scattering” Phys. Usp. 41 1229–1247 (1998)
Conferences and symposia
Shteinshleiger V B, Dzenkevich A V, Manakov V Yu, Misezhnikov G S “On overcoming the destructive effect of the ionosphere on the resolution of VHF transionospheric radar for remote sensing of the Earth” Phys. Usp. 41 1249–1251 (1998)
Personalia
Balakin V E, Belyaev Spartak T, Dikanskii N S, Dimov Gennadii I, Kruglyakov Eduard P, Kulipanov Gennadii N, Parkhomchuk V V, Sidorov Vladimir A, Skrinskii A N, Khazin B I, Khriplovich Iosif B, Chirikov B V “Lev Mitrofanovich Barkov (on his seventieth birthday)” Phys. Usp. 41 1253–1254 (1998)