@article{SF_1981__23_134509,
     author = {J. Zeleznekow},
     title = {Regular semirings.},
     journal = {Semigroup forum},
     pages = {119--136},
     publisher = {mathdoc},
     volume = {23},
     year = {1981},
     url = {http://geodesic.mathdoc.fr/item/SF_1981__23_134509/}
}