M. J. Jiménez Albarrán and C. Carazo Román, “Cistus x niatritensis, a new hyhrid”, Bot. complut., vol. 18, p. 173, Jan. 1993, Accessed: Jul. 19, 2026. Available: https://revistas.ucm.es/index.php/BOCM/article/view/BOCM9393110173A