00559na  a2200169   4500001001300000005001500013008004100028024002700069035002700096100001400123370004800137372004000185373002300225374005700248377001400305670007000319KAC2018I948520181004134303181004 b aznnnaabn          fa aaa      7 a00000004724891162isni  a(KISTI)ADPER00001267731 a우병구  c한국(국명)[韓國]0KSH20000101452nlsh  a철도[鐵道]0KSH19980045772nlsh  a한국철도공사  a연구원(연구자)[硏究員]0KSH19980377142nlsh  l한국어  a한국과학기술정보연구원(KISTI)uhttps://www.kisti.re.kr