1Nizar. Becheikh et al. Lessons from innovation empirical studies in the manufacturing sector.A systematic review of the litera ture from 1993 2003 [J]. Technovation 26 (2006).- 644-664.
2Charles P. Himmelberg, Bruce C. Peterse R&D and internal finance: A panel study of small firms in high-tech industries [J]. The Review of Economics and Statistics 01(1992):38-51.
3Myriam Cloodt et al. Mergers and acquisitions.. Their effect on the innovative performance of companies in high-tech industries [J] . Research Policy 35 (2006):642-654.
