TY  - JOUR
TI  - ON THE NUMBER OFCRITICAL POINTS OF A C1 FUNCTION ON THE SPHERE
JO  - Glasgow mathematical journal
PY  - 2000
SP  - 283
EP  - 287
VL  - 42
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.1017/S0017089500020152/
DO  - 10.1017/S0017089500020152
ID  - 10_1017_S0017089500020152
ER  -