@article{IJOPCM_2009__2_3_233149,
     author = {Narayan, K.L. and Paparao, A.V.},
     title = {A prey-predator model with a cover linearly varying with the prey population and an alternative food for the predator.},
     journal = {International Journal of Open Problems in Computer Science and Mathematics. IJOPCM},
     pages = {416},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {2009},
     zbl = {1207.92049},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IJOPCM_2009__2_3_233149/}
}