@article{GDZPPN001257587,
title = {On P-injective hulls of S-sets.},
journal = {Semigroup forum},
volume = {31},
year = {1985},
pages = {281-296},
zbl = {0599.20108},
url = {http://dml.mathdoc.fr/item/GDZPPN001257587}
}
Goseki, Z.; Weinert, H.J. On P-injective hulls of S-sets.. Semigroup forum, Tome 31 (1985) pp. 281-296. http://gdmltest.u-ga.fr/item/GDZPPN001257587/