● Vandamme P,Bernardet J-F,Segers P,Kersters K,Holmes B (1994). New Perspectives in the Classification of the Flavobacteria: Description of Chryseobacterium gen. nov., Bergeyella gen. nov., and Empedobacter nom. rev. Int. J. Syst. Bacteriol. 44, 827-831.
● Yabuuchi E,Kaneko T,Yano I,Moss CW,Miyoshi N (1983). Sphingobacterium gen. nov., Sphingobacterium spiritivorum comb. nov., Sphingobacterium multivorum comb. nov., Sphingobacterium mizutae sp. nov., and Flavobacterium indologenes sp. nov.: glucose-nonfermenting gram-negative rods in CDC groups IIK-2 and IIb. Int. J. Syst. Bacteriol. 33, 580-598.