%0 Journal Article %A Burrow, Martin D. %A Steinberg, Arthur %T On a result of G. Baumslag %J Compositio Mathematica %D 1989 %P 241-245 %V 71 %N 3 %I Kluwer Academic Publishers %U http://www.numdam.org/item/CM_1989__71_3_241_0/ %G en %F CM_1989__71_3_241_0