@article{10_37236_501,
     author = {Frank Simon and Peter Tittmann and Martin Trinks},
     title = {Counting connected set partitions of graphs},
     journal = {The electronic journal of combinatorics},
     year = {2011},
     volume = {18},
     number = {1},
     doi = {10.37236/501},
     zbl = {1209.05125},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/501/}
}