M. del P. Rodriguez-Rojo, D. Sánchez-Mata, S. Rivas-Martínez, e M. G. Barbour, «Syntaxonomical approach for classification of the Californian serpentine annual grasslands», Lazaroa, vol. 22, pp. 83–94, jan. 2001, Acedido: jul. 23, 2026. Disponível em: https://revistas.ucm.es/index.php/LAZA/article/view/LAZA0101110083A