@article{RCM_2018_52_2_a5,
     author = {Gustavo A. Ossand\'on and Ricardo Castro Santis},
     title = {Population {Dynamics} with {Density-Dependent} {Immigrations} and {Allee} e?ect},
     journal = {Revista colombiana de matematicas},
     pages = {211--218},
     publisher = {mathdoc},
     volume = {52},
     number = {2},
     year = {2018},
     url = {http://geodesic.mathdoc.fr/item/RCM_2018_52_2_a5/}
}