%0 Journal Article %A Bruckner, A. M. %T On Characterizing Classes of Functions in Terms of Associated Sets %J Canadian mathematical bulletin %D 1967 %P 227-231 %V 10 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1967-020-8/ %R 10.4153/CMB-1967-020-8 %F 10_4153_CMB_1967_020_8