TY  - JOUR
AU  - Karol Borsuk
AU  - Rimas Vaina
TI  - On covering of bounded sets by sets with the twice less diameter
JO  - Colloquium Mathematicum
PY  - 1979
SP  - 33
EP  - 37
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-42-1-33-37/
DO  - 10.4064/cm-42-1-33-37
LA  - en
ID  - 10_4064_cm_42_1_33_37
ER  -