Reque, J. A., and F. Bravo. “Identifying Forest Structure Types Using National Forest Inventory Data: The Case of Sessile Oak Forest in the Cantabrian Range”. Forest Systems 17, no. 2 (October 20, 2008): 105-113. Accessed April 28, 2024. https://fs.revistas.csic.es/index.php/fs/article/view/1027.