@article{Rybak 2015quality, author={Rybak , A..}, title={Quality systems engineering hydraulic drive technological machines due to their calculations based on volumetric stiffness}, journal={Actual directions of scientific researches of the XXI century: theory and practice}, publisher={FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov}, year={2015}, pages={385-389}, volume={3}, issue={9}, }