%0 Journal Article
%A A. G. Sergeev
%T On two geometric problems arising in mathematical physics
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 2015
%P 157-166
%V 20
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_2015_20_2_a10/
%G ru
%F FPM_2015_20_2_a10