1) S. A. Barker and P. J. Somers, “Bacterial and Fungal Polysaccharides” in “The Carbohydrates-Chemistry and Biochemistry,” Vol. IIB, ed. by W. Pigman, D. Horton and A. Herp, Academic Press, New York, 1970, pp. 569-587;
A. Misaki, Kobunshi, 17, 569 (1968).
2) “Microbial Technology,” ed. by H. J. Peppler, Reinhold Publishing Co., New York, 1967, p. 381.