Transboundary rivers and international lakes / authors: R.M.A. Breukel, J.G. TimmermanCurrent practices in monitoring and assessment of rivers and lakes / C.A.M. van Helmond, R. Hupkes, R.M.A. BreukelBiological assessment methods for watercourses / R.A.E. Knoben, C. Roos, M.C.M. van OirschotQuality assurance / J.G. Timmerman, M.J. Gardner, J.E. RavenscroftState of the art on monitoring and assessment of rivers / H.A.G. Niederländer ... [et al.]Working programme 1994/1995 / UN/ECE Task Force on Monitoring & AssessmentGuidelines on water-quality monitoring and assessment of transboundary rivers / [prep. by M. Adriaanse ; in coop. with J.G. Timmermans ... et al.]Working programme 1996/1999 / UN/ECE Task Force on Monitoring & AssessmentGuidelines on monitoring and assessment of transboundary rivers / UN/ECE Task Force on Monitoring & AssessmentGuidelines on monitoring and assessment of transboundary groundwaters / UN/ECE Task Force on Monitoring & Assessment
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Inventory of transboundary groundwaters / authors: E. Almássy, Zs. BuzásProblem-oriented approach and the use of indicators / authors: B. van der Grift, J.G.F. van DaelApplications of models / authors: G.E. Arnold ... [et al.]State of the art on monitoring and assessment of groundwaters / authors: H. Uil ... [et al.]