%0 Journal Article
%A L. Yu. Motylev
%T Perturbation theory in a complex domain for equations of Turritin type with a small parameter multiplying the derivative
%J Differencialʹnye uravneniâ
%D 1987
%P 1904-1913
%V 23
%N 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_11_a7/
%G ru
%F DE_1987_23_11_a7