%0 Journal Article
%A N. D. Yakimov
%T Variational theorems for problems with depression curves
%J Trudy seminara po kraevym zadačam
%D 1976
%P 258-275
%V 13
%N 13
%I mathdoc
%U http://geodesic.mathdoc.fr/item/KUKZ_1976_13_13_a28/
%G ru
%F KUKZ_1976_13_13_a28