@article{10_37236_2191,
     author = {Cheng Yeaw Ku and Kok Bin Wong},
     title = {On cross-intersecting families of set partitions},
     journal = {The electronic journal of combinatorics},
     year = {2012},
     volume = {19},
     number = {4},
     doi = {10.37236/2191},
     zbl = {1267.05035},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2191/}
}