Nelson, Bernadette. «From Anchieta to Guerrero: The Salve Regina in Portuguese Sources and an Unknown Early Spanish Alternatim Setting». Revista Portuguesa de Musicologia 6, no. 1 (novembro 13, 2019): 113–156. Acedido novembro 25, 2025. https://rpm-ns.pt/index.php/rpm/article/view/375.