TY - JOUR L1 - http://journals.pan.pl/Content/94015/PDF/10267-Volume60_Issue4-13_paper.pdf L2 - http://journals.pan.pl/Content/94015 PY - 2015 IS - No 4 DO - 10.1515/amsc-2015-0069 A1 - Luo, Yongjiang A1 - Li, Lijia A1 - Peng, Jianming A1 - Yin, Kun A1 - Li, Peng A1 - Gan, Xin A1 - Zhao, Letao A1 - Su, Wei PB - Committee of Mining PAS DA - 2015[2015.01.01 AD - 2015.12.31 AD] T1 - Detection Of Multilayer Cavities By Employing RC-DTH Air Hammer System And Cavity Auto Scanning Laser System UR - http://journals.pan.pl/dlibra/publication/edition/94015 T2 - Archives of Mining Sciences ER -