@article{MZ_1971__119_251840,
     author = {Nguyen Phuong-Cac},
     title = {Addendum to },
     journal = {Mathematische Zeitschrift},
     pages = {188--188},
     year = {1971},
     volume = {119},
     url = {http://geodesic.mathdoc.fr/item/MZ_1971__119_251840/}
}