Zafra, M. F., y E. García-Peregrín. «Micro-Condensation and Identification of Separate Terpene Compounds in an Analytical Gas Chromatograph». Ars Pharmaceutica (Internet), vol. 11, n.º 7-10, junio de 1970, pp. 419-33, https://revistaseug.ugr.es/index.php/ars/article/view/9738.