Factor-splitting length of torsionfree abelian groups of rank two Ladislav Bican (1983) Rendiconti del Seminario Matematico della Università di Padova
Fully Invariant Subgroups of n -Summable Primary Abelian Groups Peter Danchev (2011) Annales mathématiques Blaise Pascal We present a number of results concerning fully invariant subgroups of n -summable groups.