@article{AM2_1986__31_137164,
     author = {J. Dhombres and N. Brillouet},
     title = {Equations fonctionnelles et recherche de sous-groupes.},
     journal = {Aequationes mathematicae},
     pages = {253--293},
     publisher = {mathdoc},
     volume = {31},
     year = {1986},
     zbl = {0611.39004},
     url = {http://geodesic.mathdoc.fr/item/AM2_1986__31_137164/}
}