@article{MMNP_2007_2_1_a3,
     author = {A. Fall and A. Iggidr and G. Sallet and J. J. Tewa},
     title = {Epidemiological {Models} and {Lyapunov} {Functions}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {62--83},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2007},
     doi = {10.1051/mmnp:2008011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp:2008011/}
}