%0 Journal Article
%A E. S. Lyapin
%T Partial groupoids that can be obtained from semigroups by restrictions and homomorphisms
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1989
%P 30-36
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1989_10_a5/
%G ru
%F IVM_1989_10_a5