%0 Journal Article %A J.A. Anderson %A N. Kimura %T Tensor product of commutative unions of groups. %J Semigroup forum %D 1978 %P 105-108 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1978__16_134278/ %F SF_1978__16_134278