1. Amsellem, J. & P. Cl�ment, 1977. Correlations between ultrastructural features and contraction rates in rotiferan muscle. Cell Tissue Res., 181: 81?90.
2. Amsellemn, J. & P. Cl�ment, 1988. The muscle of a monogonont rotifer Trichocerca rattus. II. The central retractor muscles. Tissue and cell, 20(1): 89?108.
3. Amsellem, J. & G. Nicaise, 1980. Ultrastructural study of muscles cells and their connections in the digestive tract of Sepia officinalis. J. submicrosc. cytol., 12(2): 219?231.
4. Beauchamp, P. de, 1965. Classe des Rotif�res. In: Trait� de Zoologie, Anatomie, Syst�matique, Biologie. P. P. Grass�, IV, 3: 1225?1379.
5. Brakenhoff, H.,1937. Zur morphology der Bdelloidea. Zool. Jahrb. Abt. Anat., 63.