DP - MPI Library TY - JOUR AU - Loafi Messaoud T1 - Drilling technology in mining industry UR - https://doaj.org/article/8f9e2fcaf08c451eb56fb84fba94e7c4 UR - http://actamont.tuke.sk/pdf/2006/n2/3lmesaound.pdf UR - https://doaj.org/toc/1335-1788 T2 - Acta Montanistica Slovaca SP - (01.06.2006) PY - 2006 ER -