. . "C. W. Duan" . "C. Duan" . "Chang-Wen Duan" . "Changwen Duan" . . "Chang-wen Duan"@de-DE . "C." . "Čanh-ven" . "Čanh-ven Duan" . "Duan" . "段昌文" . "Chang Wen" . "Changwen" . "C. W. Duan" . "Changwen Duan" . . "C. W." . "Chang-Wen" . "段昌文" . "Chang Wen Duan" . . "W." .