Competitive collection under channel inconvenience in closed-loop supply chain. - Qidong He; Nengmin Wang; Zhen Yang 013; Zhengwen He; Bin Jiang 010 (Eur. J. Oper. Res., 2019)

Competitive dual-collecting regarding consumer behavior and coordination in closed-loop supply chain. - Nengmin Wang; Yanfei Song; Qidong He; Tao Jia 003 (Comput. Ind. Eng., 2020)

Competitive collection with convenience-perceived customers. - Qidong He; Nengmin Wang; Tyson R. Browning; Bin Jiang 010 (Eur. J. Oper. Res., 2022)

Counting conjugacy classes of elements of finite order in exceptional Lie groups. - Tamar Friedmann; Qidong He (Comb. Theory, 2024)