@article{GDZPPN001249711,
title = {An equivalency problem in discrete programming over ordered semigroups.},
journal = {Semigroup forum},
volume = {7},
year = {1974},
pages = {69-73},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN001249711}
}
Gabovic, E.Ja. An equivalency problem in discrete programming over ordered semigroups.. Semigroup forum, Tome 7 (1974) pp. 69-73. http://gdmltest.u-ga.fr/item/GDZPPN001249711/