%0 Journal Article %A R. Daniel Hurwitz %T On the Conjugacy Problem in a Free Product with Commuting Subgroups. %J Mathematische Annalen %D 1976 %P 1-8 %V 221 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1976__221_162829/ %F MAN_1976__221_162829