1. “Microbial Transformations of Steroids”;Achrem,1965
2. “Microbial Transformations of Steroids.”;Capek,1966
3. “Microbial Transformations of Steroids.”;Charney,1967
4. “Microbial Transformations of Steroids and Alkaloids.”;Iizuka,1967
5. “Steroidy, Micro-organizmy”;Achrem,1970