1. Yano, T., Ito, M., Tomita, K., Kumagai, H., Tochikura, T.: J. Ferment. Technol., in preparation.
2. Tomita, K., Ito, M., Yano, T., Kumagai, H., Tochikura, T.: Agric. Biol. Chem., in preparation.
3. Isolation of γ-Glutamyl Transpeptidase from Hog Kidney