@article{DMPS_2004_24_2_a2,
     author = {Guerreiro, Gracinda and Mexia, Jo\~ao},
     title = {An alternative approach to bonus malus},
     journal = {Discussiones Mathematicae. Probability and Statistics},
     pages = {197--213},
     publisher = {mathdoc},
     volume = {24},
     number = {2},
     year = {2004},
     zbl = {1165.62349},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMPS_2004_24_2_a2/}
}