%0 Journal Article
%A P. R. Popivanov
%T Local solvability of pseudodifferential operators with characteristics of second multiplicity
%J Sbornik. Mathematics
%D 1976
%P 193-216
%V 29
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1976_29_2_a5/
%G en
%F SM_1976_29_2_a5