Beier, C. L., Horn, M., Michel, R., Schweikert, M., Görtz, H., & Wagner, M. (2002). The Genus Caedibacter Comprises Endosymbionts of Paramecium spp. Related to the Rickettsiales (Alphaproteobacteria) and to Francisella tularensis (Gammaproteobacteria). American Society for Microbiology.

Beier, Cora L., Matthias Horn, Rolf Michel, Michael Schweikert, Hans-Dieter Görtz, and Michael Wagner. The Genus Caedibacter Comprises Endosymbionts of Paramecium Spp. Related to the Rickettsiales (Alphaproteobacteria) and to Francisella Tularensis (Gammaproteobacteria). American Society for Microbiology, 2002.

Beier, Cora L., et al. The Genus Caedibacter Comprises Endosymbionts of Paramecium Spp. Related to the Rickettsiales (Alphaproteobacteria) and to Francisella Tularensis (Gammaproteobacteria). American Society for Microbiology, 2002.