| 
            Lewin RA, Lounsbery DM. Isolation, cultivation and characterization of flexibacteria.  J. Gen. Microbiol. 58: 145-170, 1969. PubMed: 5360473
         
            . .  Bergey's Manual Syst. Bacteriol. 3: 2040, 1989. 
         
            Validation list no. 31.  Int. J. Syst. Bacteriol. 39: 495-497, 1989. 
         
            Nakagawa Y, et al. Reclassification of Cytophaga aprica (Lewin 1969) Reichenbach 1989 in Flammeovirga gen. nov. as Flammeovirga aprica comb. nov. and of Cytophaga diffluens (ex Stanier 1940; emend. Lewin 1969) Reichenbach 1989 in Persicobacter gen. nov. as Persicobacter diffluens comb. nov..  Int. J. Syst. Bacteriol. 47: 220-223, 1997. 
         
            . .  Bergey's Manual Syst. Bacteriol. 3: 2040, 1989. 
         
            Validation list no. 31.  Int. J. Syst. Bacteriol. 39: 495-497, 1989. 
         
            Nakagawa Y, et al. Reclassification of Cytophaga aprica (Lewin 1969) Reichenbach 1989 in Flammeovirga gen. nov. as Flammeovirga aprica comb. nov. and of Cytophaga diffluens (ex Stanier 1940; emend. Lewin 1969) Reichenbach 1989 in Persicobacter gen. nov. as Persicobacter diffluens comb. nov..  Int. J. Syst. Bacteriol. 47: 220-223, 1997. 
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