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- [13] CEMENTING IN DEEP DIAMOND DRILL HOLES TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1952, 193 (11): : 1061 - 1064
- [16] Determination of misplaced drill holes on a PCB 2007 30TH INTERNATIONAL SPRING SEMINAR ON ELECTRONICS TECHNOLOGY, 2007, : 406 - 409
- [18] Wedging diamond-drill holes TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1920, 63 : 413 - 418
- [20] ON SOME GEOTHERMAL FIELDS IN DRILL HOLES DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1985, 38 (09): : 1157 - 1158