@article{MZ_1976__149_172389,
     author = {Leo P. jr. Comerford and B. Truffault},
     title = {The {Conjugacy} {Problem} for {Free} {Products} of {Sixth-Groups} with {Cyclic} {Amalgamation.}},
     journal = {Mathematische Zeitschrift},
     pages = {169--182},
     publisher = {mathdoc},
     volume = {149},
     year = {1976},
     zbl = {0316.20029},
     url = {http://geodesic.mathdoc.fr/item/MZ_1976__149_172389/}
}