SpringerLink (Online service), Furse, M. T., Hering, D., Brabec, K., Buffagni, A., Sandin, L., & Verdonschot, P. F. (2006). The Ecological Status of European Rivers: Evaluation and Intercalibration of Assessment Methods (1st ed. 2006.). Dordrecht: Springer Netherlands : Imprint: Springer.

SpringerLink (Online service), Mike T. Furse, Daniel Hering, Karel Brabec, Andrea Buffagni, Leonard Sandin, and Piet F.M Verdonschot. The Ecological Status of European Rivers: Evaluation and Intercalibration of Assessment Methods. 1st ed. 2006. Dordrecht: Springer Netherlands : Imprint: Springer, 2006.

SpringerLink (Online service), et al. The Ecological Status of European Rivers: Evaluation and Intercalibration of Assessment Methods. 1st ed. 2006. Dordrecht: Springer Netherlands : Imprint: Springer, 2006.