Off road transportation cost calculations for ground based forest harvesting systems. Math. Comput. For. Nat. Res. Sci. [Интернет]. 30 сентябрь 2014 г. [цитируется по 9 сентябрь 2026 г.];6(2):48-53 (6). доступно на: https://tmp.mcfns.com/index.php/Journal/article/view/6_48