%0 Journal Article
%A Jambor, Pavel
%T An orthogonal theory of a set-valued bifunctor
%J Czechoslovak Mathematical Journal
%D 1973
%P 447-454
%V 23
%N 3
%I mathdoc
%U https://geodesic-test.mathdoc.fr/articles/10.21136/CMJ.1973.101186/
%R 10.21136/CMJ.1973.101186
%G en
%F 10_21136_CMJ_1973_101186