TY  - JOUR
AU  - Robert Kaufman
TI  - Metric properties of some planar sets
JO  - Colloquium Mathematicum
PY  - 1971
SP  - 117
EP  - 120
VL  - 23
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-23-1-117-120/
DO  - 10.4064/cm-23-1-117-120
LA  - en
ID  - 10_4064_cm_23_1_117_120
ER  -