1. French, D., Adv. in Carbohyd. Chem., 9, 149 (1954).
2. Dupéron, R., C.R. Acad. Sci., Paris, 241, 1817 (1955).
3. Dupéron, R., Rev. gén. Botan., 61, 261 (1954).
4. Courtois, J. E., Anagnostopoulos, C., and Petek, C., C.R. Acad. Sci., Paris, 238, 2020 (1954).
5. Courtois, J. E., and Petek, F., Bull. Soc. Chim. Biol., 36, 1115 (1954).