TY  - JOUR
AU  - Wong, H. Ship Fah
TI  - The Topological Degree of A-Proper Maps
JO  - Canadian journal of mathematics
PY  - 1971
SP  - 403
EP  - 412
VL  - 23
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-042-5/
DO  - 10.4153/CJM-1971-042-5
ID  - 10_4153_CJM_1971_042_5
ER  -