Rojas, Trinidad, Esther Fuertes Lasala, and Estrella Munín. 1995. “Contribution to the Segovia Province (Spain) Flora (Bryophyta). Puerto de La Quesera. General Catalogous”. Botanica Complutensis 20 (January): 55. https://revistas.ucm.es/index.php/BOCM/article/view/BOCM9595110055A.