Pérez-Rodríguez, Fernando, u. a. „A software tool for accurate assessment of costs and CO2 emissions in wood transport using OpenStreetMap©“. Mathematical and Computational Forestry & Natural-Resource Sciences (MCFNS), Bd. 8, Nr. 1, März 2016, S. 35-53 (19), https://mcfns.com/index.php/Journal/article/view/8.5.