Izco, Jesús, Andrés Molina Maruenda, and Federico Fernández-González. “Veronico jabalambrensis-Thymetum mastigophori (Aphyllanthion s.a.) ass. nova”. Lazaroa, vol. 4, vol. 4, 1982, pp. 53-61, https://revistas.ucm.es/index.php/LAZA/article/view/LAZA8282110053A.