@article{10_37236_5202,
     author = {Ali Z. Abdi and Nader H. Bshouty},
     title = {Lower bounds for cover-free families},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {2},
     doi = {10.37236/5202},
     zbl = {1339.05030},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/5202/}
}