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Journal of International Entrepreneurship > 2015 > 13 > 4 > 418-451
Systems Engineering - Theory & Practice Online > 2009 > 29 > 1 > 64-72
Journal of International Entrepreneurship > 2015 > 13 > 4 > 418-451
Systems Engineering - Theory & Practice Online > 2009 > 29 > 1 > 64-72