1. 1. Leifson, E, and Hugh, R. (1953) : J. Bacteriol., 65, 263-271.
2. 2. Leifson, E. (1960) : Atlas of Bacterial Flagellation. Academic Press, New York and London. 171p.
3. 3. Sakazaki, R, and Shimada, T. (1984) : Japan. J. Med. Sci. Biol., 37, 247-255.
4. 4. Allen, R. D, and Baumann, P. (1971) : J. Bacteriol., 107, 295-302.