@article{MM2_1995__88_1_156117,
     author = {Margit R\"osler},
     title = {On the dual of a {Commutative} signed {Hypergroup.}},
     journal = {Manuscripta mathematica},
     pages = {147--164},
     publisher = {mathdoc},
     volume = {88},
     number = {1},
     year = {1995},
     zbl = {0844.43006},
     url = {http://geodesic.mathdoc.fr/item/MM2_1995__88_1_156117/}
}