@article{MZ_1983__182_173260,
     author = {Ralph St\"ohr},
     title = {Groups with {One} {More} {Generator} than {Relators.}},
     journal = {Mathematische Zeitschrift},
     pages = {45--48},
     year = {1983},
     volume = {182},
     zbl = {0509.20021},
     url = {http://geodesic.mathdoc.fr/item/MZ_1983__182_173260/}
}