%0 Journal Article
%A R. F. Polishchuk
%T Isometries of Pfaff's space -- time systems
%J Doklady Akademii Nauk
%D 1973
%P 1321-1324
%V 208
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_208_6_a17/
%G ru
%F DAN_1973_208_6_a17