Павленко, В. М., Петко, І. В., & Хімічева, Г. І. (2009). Refinement demands for landings H8/u8, H8/x8 and H8/z8 under standard GOST 25347-82. Eastern-European Journal of Enterprise Technologies, 2(5(38), 38–41. https://doi.org/10.15587/1729-4061.2009.5978