中国科学院数学与系统科学研究院期刊网
Ramanujan Expansions of Arithmetic Functions of Several Variables over $\mathbb{F}_{q}[T]$
Tian Fang QI
Acta Mathematica Sinica, Chinese Series . 2022, (5): 891 -906 .  DOI: 10.12386/A20210053