1. Qianshun Cui,Zejun Hu,Nonexistence of non-Hopf Ricci-semisymmetric hypersurfaces in $\mathbb{C}P^{2}$ and $\mathbb{C}H^{2}$. Canad. Math. Bull. 67 (1) (2024), 188--200.
2. Qianshun Cui,Zejun Hu, On non-Hopf Ricci-pseudosymmetric hypersurfaces in $\mathbb{C}P^{2}$ and $\mathbb{C}H^{2}$, Math. Nachr. 2025, 298: 527--547.
1. Qianshun Cui,Zejun Hu,Xiaoge Lu,Zeke Yao,On hypersurfaces of $\mathbb{S}^2\times\mathbb{S}^2$ and $\mathbb{H}^2\times\mathbb{H}^2$ with recurrent Ricci tensor. Glasg. Math. J. Https://doi.org/10.1017/S0017089525000114.