@article{CMH_1979__54_139772, author = {V. Losert}, title = {Some properties of groups without the property {P1.}}, journal = {Commentarii mathematici Helvetici}, pages = {133--139}, publisher = {mathdoc}, volume = {54}, year = {1979}, zbl = {0396.43007}, url = {http://geodesic.mathdoc.fr/item/CMH_1979__54_139772/} }