@article{SF_1977__15_134244,
     author = {K. H. Kim and F.W. Roush},
     title = {On maximal submonoids of   {BX.}},
     journal = {Semigroup forum},
     pages = {137--148},
     publisher = {mathdoc},
     volume = {15},
     year = {1977},
     zbl = {0383.20049},
     url = {http://geodesic.mathdoc.fr/item/SF_1977__15_134244/}
}