00598na  a2200181   4500001001300000005001500013008004100028024002700069035002700096100001400123370004800137372004000185373003200225374005700257377001400314400001800328670007000346KAC2018L290020181017092210181017 b aznnnaabn          fa aaa      7 a00000004738212992isni  a(KISTI)ADPER00002938951 a장동욱  c한국(국명)[韓國]0KSH20000101452nlsh  a철도[鐵道]0KSH19980045772nlsh  a한국철도기술연구원  a연구원(연구자)[硏究員]0KSH19980377142nlsh  l한국어1 aChang, Donguk  a한국과학기술정보연구원(KISTI)uhttps://www.kisti.re.kr