1. Primary Abelian Groups and Their Automorphisms
2. Fuchs, L. 1973. “Infinite abelian groups”. Edited by: Vol. 2, London New York: Academic Press.
3. Kaplansky, I. 1969. “Infinite abelian groups”. Ann Arbor, Michigan: University of Michigan Press.
4. Metelli C. Global height preserving morphisms of torsionfree abelian groups (to appear)