%0 Journal Article %A O. I. Bogoyavlenskii %A S. P. Novikov %T Finite-dimensional oscillatory models in the general relativity theory and in gas dynamics %J Zapiski Nauchnykh Seminarov POMI %D 1979 %P 7-15 %V 84 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1979_84_a1/ %G ru %F ZNSL_1979_84_a1