Robert B. Ellis. Density of constant radius normal binary covering codes. Discrete Mathematics, 308(19):4446-4459, 2008. [doi]
@article{Ellis08:2,
title = {Density of constant radius normal binary covering codes},
author = {Robert B. Ellis},
year = {2008},
doi = {10.1016/j.disc.2007.08.042},
url = {http://dx.doi.org/10.1016/j.disc.2007.08.042},
researchr = {https://researchr.org/publication/Ellis08%3A2},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {308},
number = {19},
pages = {4446-4459},
}