TY  - JOUR
AU  - . Redaktor
TI  - Summaries
JO  - Mathematica Applicanda
PY  - 1989
SP  -  181
EP  - 184
VL  - 17
IS  - 31
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v17i31.1773/
DO  - 10.14708/ma.v17i31.1773
LA  - pl
ID  - 10_14708_ma_v17i31_1773
ER  -