@article{10_4153_CMB_1976_055_2,
     author = {Fischer, J.},
     title = {Counterexamples to {Two} {Problems} on {One-Relator} {Groups}},
     journal = {Canadian mathematical bulletin},
     pages = {363--364},
     year = {1976},
     volume = {19},
     number = {3},
     doi = {10.4153/CMB-1976-055-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1976-055-2/}
}