@article{ADM_2003_1_a3,
     author = {N. Kehayopulu and J. Ponizovskii and M. Tsingelis},
     title = {A note on maximal ideals in ordered semigroups},
     journal = {Algebra and discrete mathematics},
     pages = {32--35},
     publisher = {mathdoc},
     number = {1},
     year = {2003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ADM_2003_1_a3/}
}