@article{1222088607,
author = {Moghadas, Seyed M. and Alexander, Murray E. and Sahai, Beni M.},
title = {Waning Herd Immunity: A Challenge for Eradication of Measles},
journal = {Rocky Mountain J. Math.},
volume = {38},
number = {2},
year = {2008},
pages = { 1587-1607},
language = {en},
url = {http://dml.mathdoc.fr/item/1222088607}
}
Moghadas, Seyed M.; Alexander, Murray E.; Sahai, Beni M. Waning Herd Immunity: A Challenge for Eradication of Measles. Rocky Mountain J. Math., Tome 38 (2008) no. 2, pp. 1587-1607. http://gdmltest.u-ga.fr/item/1222088607/