We present a simple proof and a generalization of a Menon-type identity by Li, Hu and Kim, involving Dirichlet characters and additive characters.
"Short Proof and Generalization of a Menon-type Identity by Li, Hu and Kim." Taiwanese J. Math. 23 (3) 557 - 561, June, 2019. https://doi.org/10.11650/tjm/180904