Warren P. Johnson. Some polynomials associated with up-down permutations. Discrete Mathematics, 210(1-3):117-136, 2000. [doi]
@article{Johnson00-0,
title = {Some polynomials associated with up-down permutations},
author = {Warren P. Johnson},
year = {2000},
doi = {10.1016/S0012-365X(99)00122-3},
url = {http://dx.doi.org/10.1016/S0012-365X(99)00122-3},
researchr = {https://researchr.org/publication/Johnson00-0},
cites = {0},
citedby = {0},
journal = {Discrete Mathematics},
volume = {210},
number = {1-3},
pages = {117-136},
}