@article{SF_1974__9_134071,
     author = {D.R. LaTorre},
     title = {Semilattices of bisimple orthodox semigroups.},
     journal = {Semigroup forum},
     pages = {172--178},
     year = {1974},
     volume = {9},
     zbl = {0288.20083},
     url = {http://geodesic.mathdoc.fr/item/SF_1974__9_134071/}
}