@article{10_1017_S0017089516000471,
     author = {DOLINKA, IGOR and EAST, JAMES},
     title = {THE {IDEMPOTENT-GENERATED} {SUBSEMIGROUP} {OF} {THE} {KAUFFMAN} {MONOID}},
     journal = {Glasgow mathematical journal},
     pages = {673--683},
     year = {2017},
     volume = {59},
     number = {3},
     doi = {10.1017/S0017089516000471},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089516000471/}
}