%0 Journal Article
%A I. B. Kozhukhov
%A K. A. Kolesnikova
%T On Hopfianity and co-Hopfianity of acts over groups
%J Fundamentalʹnaâ i prikladnaâ matematika
%D 2020
%P 131-139
%V 23
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FPM_2020_23_3_a8/
%G ru
%F FPM_2020_23_3_a8