%0 Journal Article
%A D. Szynal
%A A. Wolińska
%T On classes of couples of characteristic furictions satisfying the condition of Dugué
%J Commentationes Mathematicae
%D 1983
%P  325-328
%V 23
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/cm.v23i2.6068/
%R 10.14708/cm.v23i2.6068
%G pl
%F 10_14708_cm_v23i2_6068