@article{GDZPPN002444488, title = {The QSF property for groups and spaces.}, journal = {Mathematische Zeitschrift}, volume = {220}, year = {1995}, pages = {207-218}, zbl = {0843.57003}, url = {http://dml.mathdoc.fr/item/GDZPPN002444488} }
Mihalik, Michael L.; Brick, Stephen G. The QSF property for groups and spaces.. Mathematische Zeitschrift, Tome 220 (1995) pp. 207-218. http://gdmltest.u-ga.fr/item/GDZPPN002444488/