%0 Journal Article
%A Stanisław Heilpern
%T Selected problems in the theory of fuzzy sets
%J Mathematica Applicanda
%D 1980
%P  27-38
%V 8
%N 16
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v8i16.1467/
%R 10.14708/ma.v8i16.1467
%G pl
%F 10_14708_ma_v8i16_1467