KTX & KTX Sancheon - KORAIL
Rail transport in South Korea - Wikipedia
KTX - Korea Railroad - 한국철도공사
Korea’s bullet trains speeding toward a greener future
KTX-Eum - Wikipedia
Hydrogen-powered electric train develops in Korea
KTX-Cheongryong - Wikipedia
KTX Cheong-ryong to elevate Korea's high-speed rail - 조선일보
High-Speed Rail in South Korea: KTX Bullet Train
South Korea: Korail launches new KTX-Eum high-speed train