1. The Chemistry of the Morphine Alkaloids;Bentley,1954
2. The Opium Alkaloids;Ginsburg,1962
3. Ergebnisse der Alkaloid Chemie bis 1960;Boit,1961
4. Micro-identification of the opium alkalcids;Clark;Bull. Narcotics, UN Dept. Social Affairs,1955
5. Micro-identification of the opium alkalcids;Clark;Bull. Narcotics, UN Dept. Social Affairs,1955