@article{SF_1977__14_186376,
     author = {D.I. Adu},
     title = {Existence of joins and meets in the partially ordered family of {CM-homomorphisms.}},
     journal = {Semigroup forum},
     pages = {331--354},
     publisher = {mathdoc},
     volume = {14},
     year = {1977},
     zbl = {0408.20052},
     url = {http://geodesic.mathdoc.fr/item/SF_1977__14_186376/}
}