Moishyshyn, V.M. et al. 2018. TO A QUESTION OF DETERMINATION OF HYDRAULIC RADIUS OF A BACKFILL FLOW FOR THE EXCENTRATIVE PLACEMENT OF PIPES IN DRILLING BORE: Array. PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number. 2(46) (Dec. 2018), 197–209. DOI:https://doi.org/10.31471/2304-7399-2018-2(46)-197-209.