%0 Journal Article
%A A. Kiełbasińskii(Redaktor)
%T Matematyka Stosowana
%J Mathematica Applicanda
%D 1991
%P  1-2
%V 20
%N 34
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/ma.v20i34.1780/
%R 10.14708/ma.v20i34.1780
%G pl
%F 10_14708_ma_v20i34_1780