%0 Journal Article
%A A. V. Bitsadze
%T On the Tricomi problem for nonlinear equations of mixed type
%J Doklady Akademii Nauk
%D 1977
%P 733-736
%V 235
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_235_4_a1/
%G ru
%F DAN_1977_235_4_a1