@article{01716612,
title = {Existence of limit cycles in a predator-prey system with a functional response.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {25},
year = {2001},
pages = {377-385},
doi = {10.1155/S016117120100655X},
zbl = {0994.92036},
language = {en},
url = {http://dml.mathdoc.fr/item/01716612}
}
Attili, Basem S. Existence of limit cycles in a predator-prey system with a functional response.. International Journal of Mathematics and Mathematical Sciences, Tome 25 (2001) pp. 377-385. doi : 10.1155/S016117120100655X. http://gdmltest.u-ga.fr/item/01716612/