@article{SF_1984__30_134711,
     author = {D.D. Anderson and E.W. Johnson},
     title = {Ideal theory in commutative semigroups.},
     journal = {Semigroup forum},
     pages = {127--158},
     publisher = {mathdoc},
     volume = {30},
     year = {1984},
     zbl = {0533.20032},
     url = {http://geodesic.mathdoc.fr/item/SF_1984__30_134711/}
}