Weixia Li, Hao Shen. Simple 3-designs of PSL(2, 2:::n:::) with block size 6. Discrete Mathematics, 308(14):3061-3072, 2008. [doi]
@article{LiS08:23,
title = {Simple 3-designs of PSL(2, 2:::n:::) with block size 6},
author = {Weixia Li and Hao Shen},
year = {2008},
doi = {10.1016/j.disc.2007.08.030},
url = {http://dx.doi.org/10.1016/j.disc.2007.08.030},
researchr = {https://researchr.org/publication/LiS08%3A23},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {308},
number = {14},
pages = {3061-3072},
}