. . . . . . . . . . . . . . . . . . . . . . . "Hsu Kuang-ch'i" . . . . . "Xu_Guangqi" . . . . . . . . "Paul Hs\u00FC Kuangchi" . . . . . . . . "X\u00FA Gu\u0101ngq\u012D" . . . . . . . . "X\u00FA Gu\u0101ngq\u01D0" . . . . . . . . . . . "Xu Guangqi" . . . . . . . . . . . . . . . "1633-11-08" . . . . . . . . "1562-04-24" . . . . . . . "Xu Guangqi" . . . . . . .