Oberholster, Paul J., et al. “First report on the colony-forming freshwater ciliate Ophrydium versatile in an African river.” Water SA 36.3 (2010): 315-322.

Oberholster, Paul J., et al. “First report on the colony-forming freshwater ciliate Ophrydium versatile in an African river.” Water SA 36.3 (2010): 315-322.