Courtillot, E.P. “The Applications of Radiocommunication Technics in the Lumbering of Tropical Forests”. BOIS & FORETS DES TROPIQUES 13, no. 13 (March 1, 1950): 24–35. Accessed May 19, 2024. https://revues.cirad.fr/index.php/BFT/article/view/18419.