@article{MZ_1972__126_171715,
     author = {Terence E. Stanley},
     title = {Residual {...-Centrality} in {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--5},
     year = {1972},
     volume = {126},
     url = {http://geodesic.mathdoc.fr/item/MZ_1972__126_171715/}
}