Camarero, J. J., and E. Gutierrez. “Spatial Pattern of a Subalpine Forest-Alpine Pasture Ecotone (Las Cutas, Ordesa, Central Pyrenees)”. Forest Systems 8, no. 1 (June 1, 1999): 171-205. Accessed August 4, 2026. https://fs.revistas.csic.es/index.php/fs/article/view/611.