1. T. M. Sutamihardja, A. Ishikura, J. Naito andI. Ishiguro, Chem. pharm. Bull., Tokyo, submitted (1971).
2. T. M. Sutamihardja, J. Naito andI. Ishiguro, Chem. pharm. Bull., Tokyo, submitted (1972).
3. T. M. Sutamihardja, I. Ishiguro andT. Shiotani, Abstract of the Meeting of Japanese Biochemical Society, in Sendai, Japan, October 1971; Seikagaku43, 762 (1971).
4. S. Kashiwamata, N. Nakashima andY. Kotake, Biochim. biophys. Acta113, 244 (1966).
5. S. Kashiwamata, Seikagaku36, 317 (1964).