Entrepreneurship Research Journal. Berlin, Boston: De Gruyter. Web. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/erj

Entrepreneurship Research Journal. Berlin, Boston: De Gruyter. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/erj

Entrepreneurship Research Journal. Berlin, Boston: De Gruyter. Retrieved 21 May. 2013, from http://www.degruyter.com/view/j/erj