@article{SF_1982__25_134578,
     author = {J.A. Hildebrant},
     title = {Ideal {Extensions} of compact reductive semigroups.},
     journal = {Semigroup forum},
     pages = {283--290},
     publisher = {mathdoc},
     volume = {25},
     year = {1982},
     zbl = {0508.22006},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__25_134578/}
}