TY  - JOUR
AU  - Alan R. Hausrath
AU  - Raul F. Manasevich
TI  - Periodic Solutions Of Perioically Harvested Lotka-Volterra Systems.
JO  - Revista colombiana de matematicas
PY  - 1987
SP  - 337
EP  - 345
VL  - 21
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RCM_1987__21_1_181801/
ID  - RCM_1987__21_1_181801
ER  -