@article{MAN_1976__223_162877,
     author = {Michael R. Stein and R.Keith Dennis and Michael E. Keating},
     title = {Lower {Bounds} for the {Order} of {K2(ZG)} and {Wh2(G).}},
     journal = {Mathematische Annalen},
     pages = {97--104},
     year = {1976},
     volume = {223},
     url = {http://geodesic.mathdoc.fr/item/MAN_1976__223_162877/}
}