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ajceb-4168	hdl.handle.net	http://hdl.handle.net/10230/22625
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ajceb-4168	dx.doi.org	http://dx.doi.org/10.1016/j.jeconom.2004.05.003
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ajceb-4168	dx.doi.org	http://dx.doi.org/10.1016/j.ejor.2014.01.047
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ajceb-4168	dx.doi.org	http://dx.doi.org/10.1080/01446193.2011.610330
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ajceb-4168	dx.doi.org	http://dx.doi.org/10.1016/j.ejor.2014.01.047
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ajceb-4168	dx.doi.org	http://dx.doi.org/10.1061/%28asce%29co.1943-7862.0000698
ajceb-4168	dx.doi.org	http://dx.doi.org/10.5130/ajceb.v11i3.2174
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