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Bern: Lang, 1969
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Montreal: International Civil Aviation Organization, 1989
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Montreal: International Civil Aviation Organization, 1985
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Berlin: Duncker [und] Humblot, 1982
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Aldershot [u.a.]: Avebury, 1987
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Montreal, 1979-1996 / 1977(1979) - 1992(1996)
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Berlin: Duncker & Humblot, 1987
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Leipzig: Engelsdorfer Verlag, 2023
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Göttingen: Vandenhoeck & Ruprecht, 1985
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Washington DC: World Bank, 2014 ; 2014
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World Bank Group, Washington, DC, 2014
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Bingley [England]: Emerald Group Pub. Ltd., 2012 ; Online-Ausg.
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Bingley, U.K.: Emerald Publishing Limited, 2023
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World Bank, Washington, DC, 2011
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Washington, DC, 2009
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Washington, DC, 2015
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World Bank, Dhaka, 2012
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World Bank, Washington, DC, 2009
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World Bank, 2011
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World Bank, Washington, DC, 2014