%0 Journal Article
%A R. S. Levitin
%T A metric problem for Frommer's first discrimination problem
%J Differencialʹnye uravneniâ
%D 1972
%P 2187-2196
%V 8
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1972_8_12_a9/
%G ru
%F DE_1972_8_12_a9