%0 Journal Article %A Levy, Ronnie %T Semi-F-Spaces %J Canadian mathematical bulletin %D 1988 %P 385-393 %V 31 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-055-8/ %R 10.4153/CMB-1988-055-8 %F 10_4153_CMB_1988_055_8