Hamada, A., Yamaguchi, K., Harada, M., Nikumaru, S., Wasaki, J., Shinano, T., Matsui, H., Osaki, M., and Honda H.: Expression of lupin acid phosphatase in transgenic rice for use as a phytate-hydrolyzing enzyme in animal feed. Bioscience, Biotechnology and Biochemistry, 68(7), 1611-1616 (2004)*