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Liège (Belgium): CIRIEC International, Université de Liège, [2018]
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World Bank, Washington, DC, 2016
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Wiesbaden: Springer VS, [2019]
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World Bank, Washington, DC, 2015
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World Bank, Washington, DC, 2010
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World Bank, Washington, DC, 2014
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Washington, DC, 2011
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World Bank, Washington, DC, 2014
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Washington, DC, 2010
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World Bank, Washington, DC, 2010
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World Bank, Washington, DC, 2009