@article{10_4153_CJM_1999_006_6,
     author = {R\"osler, Margit and Voit, Michael},
     title = {Partial {Characters} and {Signed} {Quotient} {Hypergroups}},
     journal = {Canadian journal of mathematics},
     pages = {96--116},
     year = {1999},
     volume = {51},
     number = {1},
     doi = {10.4153/CJM-1999-006-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1999-006-6/}
}