@article{AUCMP_1987_28_1_a1,
     author = {Konguetsof, L. and Vougiouklis, Th. and Kessoglides, M. and Spartalis, St.},
     title = {On cyclic hypergroups with period},
     journal = {Acta Universitatis Carolinae. Mathematica et Physica},
     pages = {3--7},
     year = {1987},
     volume = {28},
     number = {1},
     mrnumber = {0929260},
     zbl = {0658.20045},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUCMP_1987_28_1_a1/}
}