Third All-Union School on Nonlinear Oscillations in Distributed Systems, Gorkii, March –19,1975

A brief review is given of the lectures read at the Third All-Union School on Nonlinear Oscillations in Distributed Systems, which was held in March 1975 in Gorkii. The main subjects treated at this School were: wave processes in hydrodynamics; turbulence in hydrodynamics, acoustics, and celestial objects; stimulated scattering in the field of noncoherent pump radiation; solitons and nonlinear waves in nonequilibrium media.