@article{10_37236_2692,
     author = {Joshua Cooper and Erik Lundberg and Brendan Nagle},
     title = {Generalized pattern frequency in large permutations},
     journal = {The electronic journal of combinatorics},
     year = {2013},
     volume = {20},
     number = {1},
     doi = {10.37236/2692},
     zbl = {1267.05029},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/2692/}
}