TY  - JOUR
TI  - On Expanding Locally Finite Collections
JO  - Canadian journal of mathematics
PY  - 1971
SP  - 58
EP  - 68
VL  - 23
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-006-3/
DO  - 10.4153/CJM-1971-006-3
ID  - 10_4153_CJM_1971_006_3
ER  -