%0 Journal Article %A Chapman, G. R. %T A Class of Non-Central E-Functors %J Canadian journal of mathematics %D 1972 %P 1-4 %V 24 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-001-7/ %R 10.4153/CJM-1972-001-7 %F 10_4153_CJM_1972_001_7