Krupych Р., Shevchuk Р., Krupych О., Levko С. and Salo Я. 2018. RESEARCH OF THE AGGREGATE COEFFICIENT OF RIGIDITY OF THE WALNUT FRUIT BRANCHES. Advanced Power and Mechanical Engineering. 22 (Dec. 2018), 14–21. DOI:https://doi.org/10.31734/agroengineering2018.01.014.