TY - JOUR AU - Michael Voit TI - Duals of subhypergroups and quotients of commutative hypergroups. JO - Mathematische Zeitschrift PY - 1992 SP - 289 EP - 304 VL - 210 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZ_1992__210_1_174404/ ID - MZ_1992__210_1_174404 ER -