7Busenitz L. W., West G. P., Shepherd D., Nelson T., Chandler G. N. and Zacharakis A., 2003, "Entrepreneurshipresearch in emergence : Past trends and future directions", Journal of Management, 29 ( 3 ), pp. 285 - 308.
8Cainelli G., 2008, "Spatial agglomeration, technological innovations, and firm productivity. Evidence fromItalian industrial districts", Growth and Change, 39 (3), pp. 414 -435.
9Carroll G. R. , Delacroix J. , 1982, "Organizational mortality in the newspaper industries of Argentina andlreland: An ecological approach", Administrative Science Quarterly, pp. 169 -198.
10Eisenhardt K. M. , Graebner M. E. , 2007, "Theory building from cases: Opportunities and challenges", Academy of Management Journal, 50 ( 1 ) , pp. 25 - 32.
