%0 Journal Article
%A  
%T In memory of Professor Zdzisław Opial
%J Annales Polonici Mathematici
%D 1990
%P 5-5
%V 51
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-51-1-5-5/
%R 10.4064/ap-51-1-5-5
%G pl
%F 10_4064_ap_51_1_5_5