@article{CRMATH_2020__358_9-10_971_0,
     author = {Xu, Jianjun},
     title = {New asymptotic expansions on hyperfactorial functions},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {971--980},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {358},
     number = {9-10},
     year = {2020},
     doi = {10.5802/crmath.73},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/crmath.73/}
}