"De" . "1937" . "Tsʻao-te" . "Ts‘ao-te" . . "许曹德" . "Hsü" . "Ts‘ao-te Hsü" . . . "Caode"@en . "Caode Xu"@en . "許曹德" . . "许曹德" . "Tsʻao-te Hsü" . "Xu"@en . "許曹德" . "許曹德" . "Cao" . "Cao De Xu" . . .