Jerrold R. Griggs, Wei-Tian Li, Linyuan Lu. Diamond-free families. Journal of Combinatorial Theory, Series A, 119(2):310-322, 2012. [doi]
@article{GriggsLL12,
title = {Diamond-free families},
author = {Jerrold R. Griggs and Wei-Tian Li and Linyuan Lu},
year = {2012},
doi = {10.1016/j.jcta.2011.09.002},
url = {http://dx.doi.org/10.1016/j.jcta.2011.09.002},
researchr = {https://researchr.org/publication/GriggsLL12},
cites = {0},
citedby = {0},
journal = {Journal of Combinatorial Theory, Series A},
volume = {119},
number = {2},
pages = {310-322},
}