%0 Journal Article %A Gilbert Baumslag %T On a problem of Plotkin concerning locally nilpotent groups. %J Mathematische Zeitschrift %D 1964 %P 25-26 %V 83 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1964__83_170208/ %F MZ_1964__83_170208