Reference

L. Beyens, Ralf Meisterfeld (2001): Protozoa: Testate Amoebae. In: Smol J.P., Birks H.J.B. & Last W.M. (eds.): Tracking enviromental change using lake sediments. Vol 3: Terrestrial, algal, and siliceous indicators – Kluwer Academic Pub. The Netherlands – : 121 - 153.