@article{SF_1974__8_134026,
     author = {E.Ja. Gabovic},
     title = {An equivalency problem in discrete programming over ordered semigroups.},
     journal = {Semigroup forum},
     pages = {69--73},
     publisher = {mathdoc},
     volume = {8},
     year = {1974},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SF_1974__8_134026/}
}