Elizabeth J. Billington. New cyclic (61, 244, 40, 10, 6) BIBDs. Discrete Mathematics, 77(1-3):51-53, 1989. [doi]
@article{Billington89,
title = {New cyclic (61, 244, 40, 10, 6) BIBDs},
author = {Elizabeth J. Billington},
year = {1989},
doi = {10.1016/0012-365X(89)90349-X},
url = {http://dx.doi.org/10.1016/0012-365X(89)90349-X},
researchr = {https://researchr.org/publication/Billington89},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {77},
number = {1-3},
pages = {51-53},
}