Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_2001__51_4_a0, author = {\v{S}imko, Juraj}, title = {Linear and $\Bbb R$-linear betweenness spaces}, journal = {Mathematica slovaca}, pages = {365--370}, publisher = {mathdoc}, volume = {51}, number = {4}, year = {2001}, mrnumber = {1864105}, zbl = {0990.03029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_2001__51_4_a0/} }
Šimko, Juraj. Linear and $\Bbb R$-linear betweenness spaces. Mathematica slovaca, Tome 51 (2001) no. 4, pp. 365-370. http://geodesic.mathdoc.fr/item/MASLO_2001__51_4_a0/