@article{MMNP_2007_2_1_a1,
     author = {A. d'Onofrio and P. Manfredi and P. Manfredi},
     title = {Bifurcation {Thresholds} in an {SIR} {Model} with {Information-Dependent} {Vaccination}},
     journal = {Mathematical modelling of natural phenomena},
     pages = {26--43},
     publisher = {mathdoc},
     volume = {2},
     number = {1},
     year = {2007},
     doi = {10.1051/mmnp:2008009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/mmnp:2008009/}
}