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Palaeolimnological assessment of the reference conditions and ecological status of lakes in Estonia - implications for the European Union Water Framework Directive
[摘要]
[发布日期]  [发布机构] 
[效力级别]  [学科分类] 地质学
[关键词] Water Framework Directive;reference conditions;lake sediment;diatoms;Estonia [时效性] 
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