@article{1102913236,
author = {Hs\"u, Chin Shui},
title = {A class of Abelian groups closed under direct limits and subgroups formation.},
journal = {Pacific J. Math.},
volume = {55},
number = {2},
year = {1974},
pages = { 495-503},
language = {en},
url = {http://dml.mathdoc.fr/item/1102913236}
}
Hsü, Chin Shui. A class of Abelian groups closed under direct limits and subgroups formation.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 495-503. http://gdmltest.u-ga.fr/item/1102913236/