1. Chemical monitoring activity under the common implementation strategy of the WFD
2. Chemical Monitoring Activity under the Common Implementation Strategy of the WFD
3. Coordinating links among research, standardisation and policy in support of water framework directive chemical monitoring requirements
4. European Commission, WFD-CIS Guidance Document No. 19 Guidance on Surface Water Chemical Monitoring under The Water Framework Directive, Office for Official Publications of the European Communities, Luxembourg, 2009, p. 130. (http://circa.europa.eu/Public/irc/env/wfd/library?l=/framework_directive/guidance_documents/guidance_monitoringpdf/_EN_1.0_&a=d).
5. European Commission. WFD-CIS Guidance Document No. 25 Guidance on chemical monitoring of sediment and biota under the Water Framework Directive, Office for Official Publications of the European Communities, Luxembourg , 2010, p. 74. (http://circa.europa.eu/Public/irc/env/wfd/library?l=/framework_directive/guidance_documents/guidance_monitoring/_EN_1.0_&a=).