Based on the summary of internal and external studies on the effectiveness of environmental impact assessment (EIA), the indicator system, grading standards, and evaluating method are built up.

在总结国内外环境影响评价(EIA)有效性研究的基础上，提出EIA有效性评估的指标体系、分级标准和评估方法。

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Zbigniew Lewicki, a specialist in American studies at the University of Warsaw, told the Polish Radio External Service that there is also concern about Russia's perceived attempts to increase its influence in former Soviet satellite states, including Poland.

VOA: standard.2009.09.17

This checklist aims to assist programme sectors and field offices in the preparation of Desk Studies for external and internal evaluations.

UNESCO: Evaluation Guidelines | United Nations Educational, Scientific and Cultural Organization

Alexander Rondeli, who heads the Georgian Foundation for Strategic and International Studies, says Georgia faces internal and external pressures that keep it weak.

NPR: Georgia Hopes for Boost from Caspian Pipeline

Studies show that Mercosur's high external tariffs cause Argentina, Brazil, Paraguay and Uruguay to import from one another even when it would be more efficient to buy goods elsewhere.

ECONOMIST: Do regional trade agreements encourage free trade?