@article {1708.09109, archivePrefix = {arXiv}, eprint = {1708.09109}, primaryClass = {math.CO}, author = {Jang Soo Kim and Meesue Yoo}, title = {Hook length property of $d$-complete posets via $q$-integrals}, year = {2017}, url = {http://arxiv.org/abs/1708.09109} }