@article{1102913707, author = {Yang, Kung Wei}, title = {Isomorphisms of group extensions.}, journal = {Pacific J. Math.}, volume = {55}, number = {2}, year = {1974}, pages = { 299-304}, language = {en}, url = {http://dml.mathdoc.fr/item/1102913707} }
Yang, Kung Wei. Isomorphisms of group extensions.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 299-304. http://gdmltest.u-ga.fr/item/1102913707/