Hiller, S A Bursellopsis spaniopogon n. spec. (Ciliophora: Prostomatida): I. Infraciliature and ultrastructure of the somatic and oral cortex. [electronic resource] - European journal of protistology Mar 1991 - 1-16 p. digital Publication Type: Journal Article ISSN: 0932-4739 Standard No.: 10.1016/S0932-4739(11)80421-9 doi