- Baumslag , B. 1972 . Free Lie algebras and free groups . J.London Math.Soc. , 4 ( 2 ) : 523 – 532 .
- Boral , M. 1985 . On ideals of free and free nilpotent Lie algebras . Proc.Arner.Math.So.c , 94 ( 1 ) : 23 – 28 .
- Boral , M. 1990 . On subalgebras of free solvable and polynilpotent Lie algebras . Comm.Algebra, , 18 ( 4 ) : 1199 – 1214 .
- Boral , M. 1991 . On ideals of free polynilpotent Lie algebras . Comm.Algebra , 19 ( 1 ) : 29 – 35 .
- Hurley , T.C. 1985 . On free polynilpotent groups,their group rings and corresponding Lie algebras . Proc.R.Ir.Acad. , 85A ( 1 ) : 67 – 80 .
- Spellman , D. 1974 . On the respective terms of the lower central series of a free group and a normal subgroup, . J.Algebra , 31 : 293 – 304 .
Communications in Algebra
Volume 20, 1992 - Issue 12