@article{MAN_1992__293_4_164957, author = {A. Kraus and J. Oesterl\'e}, title = {Sur une question de {B.} {Mazur.}}, journal = {Mathematische Annalen}, pages = {259--276}, publisher = {mathdoc}, volume = {293}, number = {4}, year = {1992}, zbl = {0773.14017}, url = {http://geodesic.mathdoc.fr/item/MAN_1992__293_4_164957/} }