@article{SF_1984__28_134636,
     author = {V.S. Krishnan},
     title = {Semigroups with {S.M.F.} structures.},
     journal = {Semigroup forum},
     pages = {13--28},
     publisher = {mathdoc},
     volume = {28},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SF_1984__28_134636/}
}