@article{10_37236_5422,
     author = {Jinhua He and Louis A. Valentin and Xiaoyan Yin and Gexin Yu},
     title = {Extremal permutations in routing cycles},
     journal = {The electronic journal of combinatorics},
     year = {2016},
     volume = {23},
     number = {3},
     doi = {10.37236/5422},
     zbl = {1351.05214},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/5422/}
}