@article{SF_1985__32_251458,
     author = {G. Hansoul and J. Varlet},
     title = {Corrigendum to },
     journal = {Semigroup forum},
     pages = {293--293},
     publisher = {mathdoc},
     volume = {32},
     year = {1985},
     zbl = {0571.06006},
     url = {http://geodesic.mathdoc.fr/item/SF_1985__32_251458/}
}