TY  - JOUR
AU  - Cohen, Maurice
TI  - Approximation of Foliations
JO  - Canadian mathematical bulletin
PY  - 1971
SP  - 311
EP  - 314
VL  - 14
IS  - 3
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-057-x/
DO  - 10.4153/CMB-1971-057-x
ID  - 10_4153_CMB_1971_057_x
ER  -