TY  - JOUR
AU  - B. N. Delone
AU  - S. S. Ryshkov
TI  - Solution of the problem on the least dense lattice covering of a 4-dimensional space by equal spheres
JO  - Doklady Akademii Nauk
PY  - 1963
SP  - 523
EP  - 524
VL  - 152
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a3/
LA  - ru
ID  - DAN_1963_152_3_a3
ER  -