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Candidate dissertation
Chygur Igor Ivanovych. Development of a method of check of availability index of product of rock bit in conditions of equivocation of process of boring : к.т.н. : spec.. 05.11.13 - Прилади і методи контролю та визначення складу речовин : presented. 2000-10-10; popup.evolution: .; Ivano-Frankivsk State Technical University of Oil and Gas. – , 0400U002725.
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Updated: 2025-11-08