@article{SF_1993__47_2_135268,
     author = {G. Song},
     title = {Goldie's theorem for semigroups.},
     journal = {Semigroup forum},
     pages = {182--195},
     publisher = {mathdoc},
     volume = {47},
     number = {2},
     year = {1993},
     zbl = {0791.20082},
     url = {http://geodesic.mathdoc.fr/item/SF_1993__47_2_135268/}
}