TY - JOUR AU - Dobbs, David E. TI - On the Global Dimensions of D+M JO - Canadian mathematical bulletin PY - 1975 SP - 657 EP - 660 VL - 18 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-115-3/ DO - 10.4153/CMB-1975-115-3 ID - 10_4153_CMB_1975_115_3 ER -