TY  - JOUR
AU  - Anthony Berard
TI  - Characterizations of metric spaces by the use of their midsets: intervals
JO  - Fundamenta Mathematicae
PY  - 1971
SP  - 1
EP  - 7
VL  - 73
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-73-1-1-7/
DO  - 10.4064/fm-73-1-1-7
LA  - en
ID  - 10_4064_fm_73_1_1_7
ER  -