@article{MZ_1996__221_1_174841,
     author = {A. Ballester-Bolinches and M. P\'erez-Ramos},
     title = {On a question of {Chambers} and {Makan.}},
     journal = {Mathematische Zeitschrift},
     pages = {169--174},
     publisher = {mathdoc},
     volume = {221},
     number = {1},
     year = {1996},
     zbl = {0842.20020},
     url = {http://geodesic.mathdoc.fr/item/MZ_1996__221_1_174841/}
}