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@article{MAN_1968__178_161738, author = {P.E. SCHUPP}, title = {On {Dehn's} {Algorithm} and the {Conjugacy} {Problem.}}, journal = {Mathematische Annalen}, pages = {119--130}, publisher = {mathdoc}, volume = {178}, year = {1968}, zbl = {0164.01901}, url = {http://geodesic.mathdoc.fr/item/MAN_1968__178_161738/} }
P.E. SCHUPP. On Dehn's Algorithm and the Conjugacy Problem.. Mathematische Annalen, Tome 178 (1968), pp. 119-130. http://geodesic.mathdoc.fr/item/MAN_1968__178_161738/