%0 Journal Article %A Gilbert, William J. %T Suspension of the Lusternik-Schnirelmann Category %J Canadian journal of mathematics %D 1970 %P 1129-1132 %V 22 %N 6 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-131-6/ %R 10.4153/CJM-1970-131-6 %F 10_4153_CJM_1970_131_6