Nelson, K. E. (2019) «Observations on an early twelfth-century antiphoner fragment at Toledo», Inter-American Music Review, 17(1 - 2), pp. pp. 17 – 24. Disponible en: https://revistas.uchile.cl/index.php/IAMR/article/view/53335 (Accedido: 23 julio 2024).