TY - JOUR AU - Maria MoszyƄska TI - Theory of equidistance and betweenness relations in regular metric spaces JO - Fundamenta Mathematicae PY - 1977 SP - 17 EP - 29 VL - 96 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/fm-96-1-17-29/ DO - 10.4064/fm-96-1-17-29 LA - en ID - 10_4064_fm_96_1_17_29 ER -