@article{GDZPPN002392070,
title = {Systems of ideals in partially ordered semigroups.},
journal = {Mathematische Zeitschrift},
volume = {78},
year = {1962},
pages = {439-450},
zbl = {0123.01804},
url = {http://dml.mathdoc.fr/item/GDZPPN002392070}
}
Burgess, D.C.J.; McFadden, R. Systems of ideals in partially ordered semigroups.. Mathematische Zeitschrift, Tome 78 (1962) pp. 439-450. http://gdmltest.u-ga.fr/item/GDZPPN002392070/