(1)
Wilts, E. F.; Bininda-Emonds, O. R. P.; Ahlrichs, W. H. Comparison of the Predatory Rotifers Pleurotrocha Petromyzon (Ehrenberg, 1830) and Pleurotrocha Sigmoidea Skorikov, 1896 (Rotifera: Monogononta: Notommatidae) Based on Light and Electron Microscopic Observations. Zootaxa 2009, 2130, 1–20.