Aquatic Oligochaete Biology IX Selected Papers from the 9th Symposium on Aquatic Oligochaeta, 6-10 October 2003, Wageningen, The Netherlands - Verdonschot, Piet F.M.; Verdonschot, Piet F.M.; Wang, Hongzhe.; Wang, Hongzhe.; Pinders, Adrian.; Pinders, Adrian.; Nijboer, Rebi.; Nijboer, Rebi. (Springer Netherlands : Imprint: Springer, 2006)