%0 Journal Article
%A Lech Maligranda
%A Jan Strelcyn
%T Jan Ptaszycki (1854-1912)
%J Antiquitates Mathematicae
%D 2018
%P  31-80
%V 12
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.14708/am.v12i1.6406/
%R 10.14708/am.v12i1.6406
%G pl
%F 10_14708_am_v12i1_6406