@article{GDZPPN002412055, title = {On the Second Cohomology Groups of Semidirect Products.}, journal = {Mathematische Zeitschrift}, volume = {129}, year = {1972}, pages = {365-380}, zbl = {0238.20068}, url = {http://dml.mathdoc.fr/item/GDZPPN002412055} }
Tahara, Ken-ichi. On the Second Cohomology Groups of Semidirect Products.. Mathematische Zeitschrift, Tome 129 (1972) pp. 365-380. http://gdmltest.u-ga.fr/item/GDZPPN002412055/