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@article{MAN_1986__275_164133, author = {Andr\'e Boivin}, title = {Carlemann {Approximation} on {Riemann} {Surfaces.}}, journal = {Mathematische Annalen}, pages = {57--70}, publisher = {mathdoc}, volume = {275}, year = {1986}, zbl = {0583.30035}, url = {http://geodesic.mathdoc.fr/item/MAN_1986__275_164133/} }
André Boivin. Carlemann Approximation on Riemann Surfaces.. Mathematische Annalen, Tome 275 (1986), pp. 57-70. http://geodesic.mathdoc.fr/item/MAN_1986__275_164133/