TY  - JOUR
AU  - Robert Bartoszyński
TI  - Predators and prey
JO  - Mathematica Applicanda
PY  - 1979
SP  -  81
EP  - 91
VL  - 7
IS  - 15
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/ma.v7i15.1481/
DO  - 10.14708/ma.v7i15.1481
LA  - pl
ID  - 10_14708_ma_v7i15_1481
ER  -