Для цитирования:

Tran D., Drebenstedt C. Effect of hole shape on roughness friction factor in perforated and slotted horizontal boreholes used for opencast mine dewatering. Горные науки и технологии. 2018;(2):9-13. https://doi.org/10.17073/2500-0632-2018-2-9-12

For citation:

Tran D., Drebenstedt C. Effect of hole shape on roughness friction factor in perforated and slotted horizontal boreholes used for opencast mine dewatering. Mining Science and Technology (Russia). 2018;(2):9-13. https://doi.org/10.17073/2500-0632-2018-2-9-12