%0 Journal Article %A G. Mislin %A Peter Hilton %A J. Roitberg %T H-Spaces of Rank Two and Non-Concellation Phenomena. %J Inventiones mathematicae %D 1972 %P 325-334 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1972__16_142152/ %F IM_1972__16_142152