%0 Journal Article
%A Isaac I. Vainshtein
%T Model problems for two nonlinear equations that type depends on the solution
%J Žurnal Sibirskogo federalʹnogo universiteta. Matematika i fizika
%D 2013
%P 539-547
%V 6
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JSFU_2013_6_4_a14/
%G en
%F JSFU_2013_6_4_a14