@article{10_1017_S001708950000714X,
     author = {Higgs, R. J.},
     title = {On the degrees of projective representations},
     journal = {Glasgow mathematical journal},
     pages = {133--135},
     year = {1988},
     volume = {30},
     number = {2},
     doi = {10.1017/S001708950000714X},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S001708950000714X/}
}