References
- Auslander , L. and Schenkman , E. 1965 . Free groups, Hirsch-Plotkin radicals, and applications to geometry . Proc. Amer. Math. Soc. , 16 : 784 – 788 .
- Bachmuth , S. 1965 . Automorphisms of free metabelian groups . Trans. Amer. Math. Soc. , 118 : 93 – 104 .
- Blackburn , N. 1969 . Note on a theorem of Magnus . J. Austral. Math. Soc. , 10 : 469 – 474 .
- Fox , R. H. 1953 . Free differential calculus I . Ann. Math. , 57 : 547 – 560 .
- Kurosh , A. G. 1967 . Group Theory , 3rd Moscow : Nauka . (in Russian)
- Magnus , W. 1939 . On a theorem of Marshall Hall . Ann. Math. , 40 : 764 – 769 .
- Remeslennikov , V. N. and Sokolov , V. G. 1970 . Some properties of the Magnus embedding . Algebra i Logika , 9 : 566 – 578 . (in Russian)
- Shmelkin , A. L. 1969 . On free products of groups . Mat. Sbornik , 79 ( 121 ) : 616 – 620 . (in Russian)
- Shmelkin , A. L. 1979 . “ On some factorgroups of a free product ” . In Trudy Seminara Im Edited by: Petrovskogo , I. G. Vol. 5 , 209 – 216 . Moscow, , USSR : Moscow State University . (in Russian)