@article{SF_1982__24_134557,
     author = {Y. Kobayashi},
     title = {Cancellative and archimedean {Ideal-extensions} by commutative semigroups.},
     journal = {Semigroup forum},
     pages = {361--372},
     publisher = {mathdoc},
     volume = {24},
     year = {1982},
     zbl = {0485.20051},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__24_134557/}
}