%0 Journal Article
%A D. V. Tunitsky
%T on contact equivalence of holomorphic Monge--Amp\`ere equations
%J Lobachevskii journal of mathematics
%D 1999
%P 163-175
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/LJM_1999_4_a7/
%G en
%F LJM_1999_4_a7