@article{GDZPPN002308940,
title = {A 2-metric Characterization of the Euclidean Plane.},
journal = {Mathematische Annalen},
volume = {201},
year = {1973},
pages = {285-294},
zbl = {0252.50001},
url = {http://dml.mathdoc.fr/item/GDZPPN002308940}
}
Freese, Raymond W. A 2-metric Characterization of the Euclidean Plane.. Mathematische Annalen, Tome 201 (1973) pp. 285-294. http://gdmltest.u-ga.fr/item/GDZPPN002308940/