%0 Journal Article
%A S. V. Bolotin
%T First integrals of systems with elastic reflections
%J Vestnik Moskovskogo universiteta. Matematika, mehanika
%D 1988
%P 42-45
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/VMUMM_1988_6_a10/
%G ru
%F VMUMM_1988_6_a10