Reference

Sergei I. Fokin, Przybos, S.M. Chivilevc, C.L. Beierd, M. Hornd, B. Skotarczak, B. Wodeckae, M. Fujishima (2004): Morphological and molecular investigations of Paramecium schewiakoffi sp. nov. (Ciliophora, Oligohymenophorea) and current status of distribution and taxonomy of Paramecium spp. – Eur. J. Prot. – 40: 225 - 243.