@article{PORMA_1970__29_4_115127,
     author = {Grillet, Mireille P.},
     title = {Green's relations in a semiring},
     journal = {Portugaliae mathematica},
     pages = {181--195},
     publisher = {mathdoc},
     volume = {29},
     number = {4},
     year = {1970},
     mrnumber = {0289583},
     zbl = {0227.16029},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1970__29_4_115127/}
}