1. Rotifers in the Schelde estuary (Belgium): a test of taxonomic relevance
2. Marine Cladocerans in the Chesapeake Bay Estuary1)
3. Boxshall, G.A., Halsey, S.H. (2004 a): An introduction to Copepod Diversity. Part I, The Ray Society Instıtuted. London, 1-419.
4. Boxshall, G.A., Halsey, S.H. (2004 b): An introduction to Copepod Diversity. Part II, The Ray Society Instıtuted. London, p. 420-966.
5. Status of the Guadiana Estuary (south Portugal) during 1996-1998: An ecohydrological approach