1. Monographie der Familie Ophryoscolecidae;Dogiel;Arch. Protistenk.,1927
2. The uptake and metabolism of bacteria, amino acids, glucose and starch by the spined and spineless forms of the rumen ciliate Entodinium caudatum;Coleman;J. Gen. Microbiol.,1980
3. Viable bacteria inside the rumen ciliate Entodinium caudatum;White;J. Gen. Microbiol.,1969