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@article{MAN_1970__186_161977, author = {P.E. SCHUPP}, title = {On the {Conjugacy} {Problem} for {Certain} {Quotient} {Groups} of {Free} {Products.}}, journal = {Mathematische Annalen}, pages = {123--129}, publisher = {mathdoc}, volume = {186}, year = {1970}, zbl = {0182.03504}, url = {http://geodesic.mathdoc.fr/item/MAN_1970__186_161977/} }
P.E. SCHUPP. On the Conjugacy Problem for Certain Quotient Groups of Free Products.. Mathematische Annalen, Tome 186 (1970), pp. 123-129. http://geodesic.mathdoc.fr/item/MAN_1970__186_161977/