Self-template synthesis of flower-like hierarchical graphene/copper oxide@copper(II) metal-organic framework composite for the voltammetric determination of caffeic acid. - Tu, Xiaolong; Xie, Yu; Gao, Feng; Ma, Xue; Lin, Xinchen; Huang, Xigen; Qu, Fengli; Ping, Li; Yu, Yongfang; Lu, Limin (Microchimica Acta, 2020)