@article{10_1017_S0017089501020018,
     author = {Guo, Xiaojiang},
     title = {F-abundant semigroups},
     journal = {Glasgow mathematical journal},
     pages = {153--163},
     year = {2001},
     volume = {43},
     number = {2},
     doi = {10.1017/S0017089501020018},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089501020018/}
}