%0 Journal Article
%A Andrzej Pelczar
%T Some generalizations of the retract theorem
of T. Ważewski with applications to ordinary
and partial differential equations of the first order
%J Annales Polonici Mathematici
%D 1974
%P 15-59
%V 29
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.4064/ap-29-1-15-59/
%R 10.4064/ap-29-1-15-59
%G en
%F 10_4064_ap_29_1_15_59