TY  - JOUR
AU  - DAVID W. BOYD
TI  - Improved Bound for the Disk-packing Constant (Short Communication)
JO  - Aequationes mathematicae
PY  - 1973
SP  - 115
EP  - 116
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1973__9_136331/
ID  - AM2_1973__9_136331
ER  -