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@article{MAN_1973__206_162522, author = {Raymond W. Freese}, title = {A 2-metric {Characterization} of the {Euclidean} {Plane.}}, journal = {Mathematische Annalen}, pages = {285--294}, publisher = {mathdoc}, volume = {206}, year = {1973}, zbl = {0252.50001}, url = {https://geodesic-test.mathdoc.fr/item/MAN_1973__206_162522/} }
Raymond W. Freese. A 2-metric Characterization of the Euclidean Plane.. Mathematische Annalen, Tome 206 (1973), pp. 285-294. https://geodesic-test.mathdoc.fr/item/MAN_1973__206_162522/