Reviews of topical problems

A.I. Akhiezer, V.G. Bar’yakhtar, M.I. Kaganov “Spin waves in ferromagnets and antiferromagnets. II Interaction of spin waves with one another and with lattice vibrations; relaxation and kinetic processes” Sov. Phys. Usp. 3 661–676 (1961)

R.V. Polovin “Shock waves in magnetohydrodynamics” Sov. Phys. Usp. 3 677–688 (1961)

V.S. Barashenkov “Interaction cross sections of high-energy particles” Sov. Phys. Usp. 3 689–701 (1961)

N.G. Basov, O.N. Krokhin, Yu.M. Popov “Generation, amplification, and detection of infrared and optical radiation by quantum-mechanical systems” Sov. Phys. Usp. 3 702–728 (1961)

A.I. Baz’, V.I. Gol’danskii, Ya.B. Zel’dovich “Undiscovered isotopes of light nuclei” Sov. Phys. Usp. 3 729–742 (1961)

B.N. Gershman, V.A. Ugarov “Propagation and generation of low-frequency electromagnetic waves in the upper atmosphere” Sov. Phys. Usp. 3 743–764 (1961)

Instruments and methods of investigation

V.V. Vishnyakov, H.-W. T’ang, A.A. Tyapkin “LOW-VOLTAGE HALOGEN COUNTERS (Mechanism of Discharge)” Sov. Phys. Usp. 3 765–777 (1961)

New instruments and measurement methods

N.S. Gorbunov, V.I. Izvekov “The investigation of diffusion in metal oxides by means of radioactive tracers” Sov. Phys. Usp. 3 778–797 (1961)

Personalia

I.K. Kikoin, M.S. Sominskii “Abram Fedorovich Ioffe (on his eightieth birthday)” Sov. Phys. Usp. 3 798–809 (1961)

N.A. Dobrotin, N.L. Grigorov, G.T. Zatsepin, I.P. Ivanenko, A.N. Charakhch’yan, A.E. Chudakov “SERGEĬ NIKOLAEVICH VERNOV (on his fiftieth birthday)” Sov. Phys. Usp. 3 810–812 (1961)