01042nam a2200265 k 4500001001500000005001500015008004100030040001900071041001300090049003600103052002800139056001300167082001200180110004600192245016500238260004200403300002000445490005700465500002600522504002500548653007200573700005700645830005700702950001700759KMO199910424  20181115115253990519s1998    tjk           000   kor    a011001c0110010 akorbeng0 lEM1860588v52lEM1860589v52c201a559.6b한593ㅇㄱc52  a559.6240 a622221  a한국자원연구소,e편0KAB20180088610a폐광산의 갱도 및 채굴적 활용방안 연구=xAlternative utilization of underground spaces with abandoned mine openings/d한국자원연구소 [편]  a대전:b한국자원연구소,c1998  avi,174p.;c26cm10a硏究報告書= KIGAM research report;vKR-98(C)-52  a연구자 : 정소걸  a참고문헌 : p.121  a폐광산a갱도a채굴aUNDERGROUNDaSPACESaABANDONEDaOPENINGS1 a정소걸,g鄭小杰,d1952-,e연구0KAC201620805 0a연구보고서(한국자원연구소);vKR-98(C)-521 a가격불명