Kaminski, Jan Radosław, Maciej Kuboń, Evgenij Ivanovič Mazugin, and Sergej Grigorevič Rubee. 2016. “Cutting of Woody Shrubs at Melioration Objects by a Multi-Rotor Mower With Trapezoidal Knives”. Agricultural Engineering 20 (3), 53–71. https://doi.org/10.1515/agriceng-2016-0044.