Cabo Torres, Jesús, Ángel Villar del Fresno, y Pilar Prado García. «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, no. 1-2 (diciembre 20, 1967): 3–10. Accedido mayo 19, 2024. https://revistaseug.ugr.es/index.php/ars/article/view/7761.