TY  - JOUR
AU  - Jan Waszkiewicz
TI  - The two Warsaw
JO  - Antiquitates Mathematicae
PY  - 2016
SP  -  223
EP  - 229
VL  - 10
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/am.v10i0.1545/
DO  - 10.14708/am.v10i0.1545
LA  - pl
ID  - 10_14708_am_v10i0_1545
ER  -