%0 Journal Article %A Hermann Heineken %A Narain Datt Gupta %T Groups with a Two-Variable Commutator Identity. %J Mathematische Zeitschrift %D 1967 %P 276-287 %V 95 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1967__95_170655/ %F MZ_1967__95_170655