@article{GDZPPN002220466, title = {Irreducible Projective Representations of Finite Groups.}, journal = {Manuscripta mathematica}, volume = {22}, year = {1977}, pages = {33-46}, zbl = {0365.20016}, url = {http://dml.mathdoc.fr/item/GDZPPN002220466} }
Tappe, Jürgen. Irreducible Projective Representations of Finite Groups.. Manuscripta mathematica, Tome 22 (1977) pp. 33-46. http://gdmltest.u-ga.fr/item/GDZPPN002220466/