@article{10_37236_2693,
     author = {A. E. Brouwer and C. F. Mills and W. H. Mills and A. Verbeek},
     title = {Counting families of mutually intersecting sets},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {2},
     doi = {10.37236/2693},
     zbl = {1267.05144},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2693/}
}