@article{LJM_2007_27_a2,
     author = {N. Kehayopulu},
     title = {Weakly prime and prime fuzzy ideals in ordered semigroups},
     journal = {Lobachevskii journal of mathematics},
     pages = {31--40},
     publisher = {mathdoc},
     volume = {27},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2007_27_a2/}
}