Krupych Р., Shevchuk Р., Krupych О., Levko С. and Salo Я. 2018. RESEARCH OF THE AGGREGATE COEFFICIENT OF RIGIDITY OF THE WALNUT FRUIT BRANCHES. Bulletin of Lviv National Environmental University. Series Agroengineering Research. 22 (Dec. 2018), 14–21. DOI:https://doi.org/10.31734/agroengineering2018.01.014.