@article{CMJ_1998__48_4_a9,
     author = {Nochefranca, L. and Shum, K. P.},
     title = {Pseudo-symmetric ideals of semigroup and their radicals},
     journal = {Czechoslovak Mathematical Journal},
     pages = {727--735},
     publisher = {mathdoc},
     volume = {48},
     number = {4},
     year = {1998},
     mrnumber = {1658253},
     zbl = {0954.20036},
     language = {en},
     url = {https://geodesic-test.mathdoc.fr/item/CMJ_1998__48_4_a9/}
}