%0 Journal Article
%A H. Rasiowa
%A Roman Sikorski
%T On existential theorems in non-classical functional calculi
%J Fundamenta Mathematicae
%D 1955
%P 21-28
%V 41
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/fm-41-1-21-28/
%R 10.4064/fm-41-1-21-28
%G en
%F 10_4064_fm_41_1_21_28