%0 Journal Article %A Kathryn J. Horadam %T One-Relator Groups and the Lower Central Series. II. Invariants of One-Relator Groups. %J Mathematische Zeitschrift %D 1982 %P 359-368 %V 179 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1982__179_173151/ %F MZ_1982__179_173151