%0 Journal Article %A S.M. Gersten %A H.B. Short %T Small cancellation theory and automatic groups. %J Inventiones mathematicae %D 1990 %P 305-334 %V 102 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1990__102_2_143837/ %F IM_1990__102_2_143837