@article{LJM_2006_21_a4,
     author = {N. Kehayopulu and M. Tsingelis},
     title = {Fuzzy interior ideals in ordered semigroups},
     journal = {Lobachevskii journal of mathematics},
     pages = {65--71},
     publisher = {mathdoc},
     volume = {21},
     year = {2006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2006_21_a4/}
}