@misc{10_1017_S0017089500007199,
     title = {Groups whose {Projective} character degrees are powers of a prime{\textdagger}},
     journal = {Glasgow mathematical journal},
     pages = {177--180},
     year = {1988},
     volume = {30},
     number = {2},
     doi = {10.1017/S0017089500007199},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500007199/}
}