@article{10_4064_fm_96_1_17_29,
     author = {Maria Moszy\'nska},
     title = {Theory of equidistance and betweenness relations in regular metric spaces},
     journal = {Fundamenta Mathematicae},
     pages = {17--29},
     publisher = {mathdoc},
     volume = {96},
     number = {1},
     year = {1977},
     doi = {10.4064/fm-96-1-17-29},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-96-1-17-29/}
}