@article{AM2_1985__28_137044,
     author = {John Lawrence},
     title = {The stability of multiplicative semigroup homomorphisms to real normed algebras, {I.}},
     journal = {Aequationes mathematicae},
     pages = {94--101},
     publisher = {mathdoc},
     volume = {28},
     year = {1985},
     zbl = {0594.46047},
     url = {http://geodesic.mathdoc.fr/item/AM2_1985__28_137044/}
}