%0 Journal Article
%A N. V. Grigorenko
%T Logarithmic singularities of some classical linear differential equations
%J Differencialʹnye uravneniâ
%D 1987
%P 1455-1457
%V 23
%N 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_8_a21/
%G ru
%F DE_1987_23_8_a21