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- [1] RECENT MINE SAFETY R-AND-D PROJECTS OF THE US-BUREAU-OF-MINES E&MJ-ENGINEERING AND MINING JOURNAL, 1995, 196 (11): : 26 - 28
- [9] THE EFFECTIVE USE OF R-AND-D PROJECTS FOR A MANAGEMENT INSTRUMENT IN INNOVATION PROCESSES CHEMISCHE TECHNIK, 1985, 37 (05): : 183 - 185