@inproceedings{sgem2014s3064,
  title = {RESEARCH ON COAL MINE PROJECT INVESTMENT DECISIONS BASED ON GREY CLUSTERING   CORRELATION DECISION MODEL},
  author = {L.U. Mingxiang},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2014},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2014/b13/s3.064}
}