TY - JOUR AU - Brown, William G. TI - A New Proof of a Theorem of Dirac JO - Canadian mathematical bulletin PY - 1965 SP - 459 EP - 463 VL - 8 IS - 4 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1965-032-8/ DO - 10.4153/CMB-1965-032-8 ID - 10_4153_CMB_1965_032_8 ER -