@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/}
}