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- [2] CALCULATION OF DIRECTIONAL CORING AND DEFLECTION DRILLING. Zhongnan Kuangye Xueyuan xuebao, 1987, 18 (04): : 369 - 372
- [3] AUGER DRILLING. Transactions of the Institution of Mining and Metallurgy, Section B: Applied Earth Science, 1987, 96
- [7] DEVELOPMENT OF GEOLOGICALLY COMPLEX OIL AND GAS DEPOSITS USING DIRECTIONAL DRILLING. Nafta Zagreb, 1979, 30 (9-11): : 448 - 465