%0 Journal Article
%A N. P. Erugin
%A V. S. Korolyuk
%A O. B. Lukova
%T Yuri{\v\i} Alekseevich Mitropol'ski{\v\i} (on the occasion of his seventieth birthday)
%J Differencialʹnye uravneniâ
%D 1987
%P 3-9
%V 23
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1987_23_1_a0/
%G ru
%F DE_1987_23_1_a0