1. (a) Bouzard, D. In Antibiotics and Antiviral Compounds; Krohn, K.; Rirst, H. A.; Maag, H., Eds.; VCH: Weinheim, 1993.
2. (b) Quinolone Antibacterial Agents; Hoope, D. C.; Wolfson, J. S., Eds.; ASM: Washington, 1993.
3. Atarashi, S.; Yokohama, S.; Yamazaki, K.; Sakano, K.; Imamura, M.; Hayakawa, J. Chem. Pharm. Bull. Jpn 1987, 35, 1896–1902.
4. Hayakawa, J.; Atarashi, S.; Yokohama, S.; Imamura, M.; Sakano, K.; Higashihashi, N.; Ohshima, M. EP 206,283 (1986) (Chem. Abstr. 1987, 106, 119895t).
5. (a) Fujiwara, T.; Yokota, T. JP 01,175,975 (1989) (Chem. Abstr. 1990, 112, 35875x).