@article{SF_1995__51_1_135412,
     author = {F. Jing},
     title = {Abundant semigroups with a medical idempotent.},
     journal = {Semigroup forum},
     pages = {247--262},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {1995},
     zbl = {0834.20059},
     url = {http://geodesic.mathdoc.fr/item/SF_1995__51_1_135412/}
}