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by Ammar, Jamil; Xu, Songhua
by Jamil Ammar; Songhua Xu
by Xu, Songhua; Lau, Francis C. M.; Pan, Yunhe
by Xu, Songhua; Lau, Francis C. M.; Pan, Yun-he
by Songhua Xu; Francis C.M. Lau; Yunhe Pan