@article{SF_1971__3_133852,
     author = {K.K.H. Butler},
     title = {On a {Miller} and {Clifford} {Theorem.}},
     journal = {Semigroup forum},
     pages = {92--94},
     publisher = {mathdoc},
     volume = {3},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SF_1971__3_133852/}
}