@article{JRAM_1987__377_152938,
     author = {John McKay and Richard Stauduhar},
     title = {Coda to a theorem of {Schur.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {219--220},
     year = {1987},
     volume = {377},
     zbl = {0604.12008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1987__377_152938/}
}