@article{10_1017_S2040618500033980,
     author = {Husemoller, Dale H.},
     title = {A generalization of {Hurwitz's} {Theorem}},
     journal = {Glasgow mathematical journal},
     pages = {101--102},
     year = {1960},
     volume = {4},
     number = {3},
     doi = {10.1017/S2040618500033980},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S2040618500033980/}
}