TY  - JOUR
AU  - DAVID W. BOYD
TI  - Improved Bounds for the Disk-packing Constant
JO  - Aequationes mathematicae
PY  - 1973
SP  - 99
EP  - 106
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AM2_1973__9_136329/
ID  - AM2_1973__9_136329
ER  -