. "Geng-guang Zhang" . . "Zhang"@en . "Zhanggengguang" . "Keng-kuang" . "Chang" . "Keng-kuang Chang" . "张耿光" . "Gengguang"@en . "Gengguang Zhang"@en . "geng" . "Zhang geng guang" . . "geng Zhang geng guang" . "Zhanggengguang" . "张耿光" . . "張耿光" . "張耿光" . "張耿光" . "张耿光" . "Keng-kuang Chang" . "Geng-guang" . . . .