. "Ch'ang-gŭn Yu" . "Ch'ang-gŭn" . . . "Yu"@nl-NL . "Chang-gŭn" . . "유장근" . . "1952" . "Chang-gŭn"@en . "유 장근" . "Yu" . "유 장근" . "Chang-gŭn Yu" . "Yu"@en . "Chang-gŭn Yu"@en . "Yu, Chang-gŭn" . "유장근" . "유 장근" . . .