* Miramontes Luis E., Romero Miguel A, Ahuad Farjat Fortunato (1961), "3beta-alkanoyloxy-6-methyl-5,16-pregnadien-20-ones", United States Patent 3000914.
* Miramontes Luis E., Romero Miguel A, Ahuad Farjat Fortunato (1961), "3beta-alkanoyloxy-6-methyl-5,16-pregnadien-20-ones", .