@article{105745, author = {Jind\v rich Be\v cv\'a\v r}, title = {$K$-essential subgroups of abelian groups. III.}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {018}, year = {1977}, pages = {11-18}, zbl = {0359.20036}, mrnumber = {0439953}, language = {en}, url = {http://dml.mathdoc.fr/item/105745} }
Bečvář, Jindřich. $K$-essential subgroups of abelian groups. III.. Commentationes Mathematicae Universitatis Carolinae, Tome 018 (1977) pp. 11-18. http://gdmltest.u-ga.fr/item/105745/
$K$-essential subgroups of abelian groups I, Comment. Math. Univ. Carolinae 17 (1976), 481-491. (1976) | MR 0439951
$K$-essential subgroups of abelian groups II, Comment. Math. Univ. Carolinae 17 (1976), 693-707. (1976) | MR 0439952
Infinite abelian groups I, Acad. Press 1970. (1970) | MR 0255673
Infinite abelian groups II, Acad. Press 1973. (1973) | MR 0349869
High extensions of abelian groups, Acta Math. Acad. Sci. Hungar. 14 (1963), 319-330. (1963) | MR 0156882 | Zbl 0127.25402
Ob $N$-vysokich podgruppach abelevoj gruppy, Vest. Mosk. Univ. 1 (1975), 58-64. (1975) | MR 0399308