Reviews of topical problems

V.L. Ginzburg “High-temperature superconductivity (history and general review)” Sov. Phys. Usp. 34 (4) 283–288 (1991)

G.R. Ivanitskii, A.B. Medvinskii, M.A. Tsyganov “From disorder to order as applied to the movement of micro-organisms” Sov. Phys. Usp. 34 (4) 289–316 (1991)

V.B. Leonas “Multi-electron secondary emission from solid surface bombarded by fast atomic particles” Sov. Phys. Usp. 34 (4) 317–330 (1991)

Conferences and symposia

A.A. Kozochkina, V.B. Leonas “Multi-electron emission induced by fast atoms passing through a thin foil” Sov. Phys. Usp. 34 (4) 331–333 (1991)

A.D. Erlykin, E.A. Mamidzhanyan “Autumn school ’Interactions of hadrons at super-accelerator energies’” Sov. Phys. Usp. 34 (4) 334–339 (1991)

V.A. Tsarev “New data on low-temperature fusion (based on materials of the conference in Provo, Utah, USA; October 22-24, 1990)” Sov. Phys. Usp. 34 (4) 340–352 (1991)

Personalia

A.F. Andreev, N.G. Basov, V.L. Ginzburg, A.V. Gurevich, B.B. Kadomtsev, D.A. Kirzhnits, Yu.V. Kopaev, Yu.A. Osip’yan, A.M. Prokhorov, E.L. Feinberg, E.S. Fradkin “Leonid Veniaminovich Keldysh (On his sixtieth birthday)” Sov. Phys. Usp. 34 (4) 353–354 (1991)

Book reviews

A.V. Andreev “X-ray lasers” Sov. Phys. Usp. 34 (4) 355–356 (1991)

O.Ya. Butkovskii, Yu.A. Kravtsov “Nonlinear structures in physical systems” Sov. Phys. Usp. 34 (4) 357–357 (1991)

P.I. Arseev “The quantum statistics of dynamic processes” Sov. Phys. Usp. 34 (4) 358–358 (1991)

N.S. Maslova “Chemistry and physics of solid surfaces” Sov. Phys. Usp. 34 (4) 359–359 (1991)