TY  - JOUR
AU  - Doeraene, Jean-Paul
AU  - Haouari, Mohammed El
TI  - The Ganea and Whitehead Variants of the Lusternik–Schnirelmann Category
JO  - Canadian mathematical bulletin
PY  - 2006
SP  - 41
EP  - 54
VL  - 49
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-2006-005-4/
DO  - 10.4153/CMB-2006-005-4
ID  - 10_4153_CMB_2006_005_4
ER  -