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@article{MAN_1957__133_160560, author = {Ph. Hartman}, title = {Remarks on a uniqueness theorem for closed surfaces.}, journal = {Mathematische Annalen}, pages = {426--430}, publisher = {mathdoc}, volume = {133}, year = {1957}, zbl = {0090.38001}, url = {http://geodesic.mathdoc.fr/item/MAN_1957__133_160560/} }
Ph. Hartman. Remarks on a uniqueness theorem for closed surfaces.. Mathematische Annalen, Tome 133 (1957), pp. 426-430. http://geodesic.mathdoc.fr/item/MAN_1957__133_160560/