%0 Journal Article
%A N. V. Chiganova
%T The eigenvalue problem for an equation of mixed type with two lines of degeneracy
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2003
%P 67-73
%N 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_2003_9_a11/
%G ru
%F IVM_2003_9_a11