1. Numerical classification of the tribe Klebsielleae;Bascomb, S.; Lapage, S.P.; Willcox, W.R.; Curtis, M.A.;J. gen. Microbiol,1971
2. Natural and acquired resistance of Klebsiella-Aerobacter to cephalothin and cephaloridine;Benner, E.J.; Micklewait, J.S.; Brodie, J.L.; Kirby, W.M.M.;Proc. Soc. exp. Biol. (N. Y.),1965
3. A new group of Enterobacteria, possibly a new Citrobacter sp;Booth, E.V.; McDonald, S.;J. med. Microbiol,1971
4. Biochemical Characterization of Citrobacter freundii and Citrobacter diversus;Ewing, W.H.; Davis, B.R.,1971
5. Biochemical characterization of Citrobacter diversus (Burkey) Werkman and Gillen and designation of the neotype strain;Ewing, W.H.; Davis, B.R.;Int. J. syst. Bact,1972