@article{SF_1976__13_134221,
     author = {M. Szendrei},
     title = {On the structure of orthodox semigroups.},
     journal = {Semigroup forum},
     pages = {271--280},
     publisher = {mathdoc},
     volume = {13},
     year = {1976},
     zbl = {0444.20054},
     url = {http://geodesic.mathdoc.fr/item/SF_1976__13_134221/}
}