Cabo Torres, J., Villar del Fresno, Ángel y Prado García, P. (1967) «Determination of alkaloids in drugs. Attempt to unify the techniques prescribed by the F.E. IX. - I. Belladonna leaves and coca», Ars Pharmaceutica (Internet), 9(1-2), pp. 3–10. Disponible en: https://revistaseug.ugr.es/index.php/ars/article/view/7761 (Accedido: 22 julio 2024).