Broadening the scope of open innovation: past research, current state and future directions. - Vareska Van de Vrande; Wim Vanhaverbeke; Oliver Gassmann (Int. J. Technol. Manag., 2010)

Additivity and Complementarity in External Technology Sourcing: The Added Value of Corporate Venture Capital Investments. - Vareska Van de Vrande; Wim Vanhaverbeke; Geert Duysters (IEEE Trans. Engineering Management, 2011)