@article{10_37236_4480,
     author = {Igor Pak and Robin Pemantle},
     title = {On the longest \(k\)-alternating subsequence},
     journal = {The electronic journal of combinatorics},
     year = {2015},
     volume = {22},
     number = {1},
     doi = {10.37236/4480},
     zbl = {1308.05013},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/4480/}
}