Jiménez-Alfaro, B.; Alonso Felpete, J. I.; Bueno Sánchez, Á.; Fernández Prieto, J. A. Alpine plant communities in the Picos de Europa calcareous massif (Northern Spain). Lazaroa 2014, 35, 67-105. https://doi.org/10.5209/rev_LAZA.2013.v34.n1.43646.