TY  - JOUR
AU  - . Redaktor
TI  - Cerificate from Polish Mathematical Society
JO  - Mathematica Applicanda
PY  - 2001
SP  -  81
VL  - 29
IS  - 43/02
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v29i43/02.1894/
DO  - 10.14708/ma.v29i43/02.1894
LA  - pl
ID  - 10_14708_ma_v29i43_02_1894
ER  -