Sugiyama, T., Kido, N., Kato, Y., Koide, N., Yoshida, T., & Yokochi, T. (1998). Generation of Escherichia coli O9a Serotype, a Subtype of E. coli O9, by Transfer of the wb* Gene Cluster of Klebsiella O3 into E. coli via Recombination. American Society for Microbiology.

Sugiyama, Tsuyoshi, Nobuo Kido, Yutaka Kato, Naoki Koide, Tomoaki Yoshida, und Takashi Yokochi. Generation of Escherichia Coli O9a Serotype, a Subtype of E. Coli O9, By Transfer of the Wb* Gene Cluster of Klebsiella O3 Into E. Coli Via Recombination. American Society for Microbiology, 1998.

Sugiyama, Tsuyoshi, et al. Generation of Escherichia Coli O9a Serotype, a Subtype of E. Coli O9, By Transfer of the Wb* Gene Cluster of Klebsiella O3 Into E. Coli Via Recombination. American Society for Microbiology, 1998.