@article{AM2_1980__20_182389,
     author = {K.P. Chinda and Jane M. Day},
     title = {The structure of hemigroups. {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {116--117},
     publisher = {mathdoc},
     volume = {20},
     year = {1980},
     zbl = {0459.22003},
     url = {http://geodesic.mathdoc.fr/item/AM2_1980__20_182389/}
}