J.  Hafkesbrink, Bachem, C., and Kulenovic, D., ?Contextual Ambidexterity and Individual Competencies for Exploration and Exploitation in Small and Medium sized Enterprises?, in Flexibilität und Stabilität in der Verlags- und Medienbranche - Konzepte beidhändiger Unternehmensstrategien., vol. 34, Köln: , 2013, pp. 65?170.

J.  Hafkesbrink, Bachem, C., and Kulenovic, D., ?Contextual Ambidexterity and Individual Competencies for Exploration and Exploitation in Small and Medium sized Enterprises?, 2012.

J.  Hafkesbrink, Kulenovic, D., and Bachem, C., ?Contextual Ambidexterity and individual Competencies for Exploration and Exploitation in Small and Medium sized Enterprises - empirical Results from Case Studies in the German New Media Industry?, Paper submitted to the  XXIII ISPIM Conference 17-20 June 2012, Action for Innovation: Innovating from Experience, Barcelona Spain, 2011.

J.  Hafkesbrink, Stark, A., and Schmucker, M., ?Controlled Opening in pro-active SME Innovation?a Case Study on an ?Open Innovation Audit?in the Digital Economy?, Competence Management for Open Innovation: Tools and It Support to Unlock the Innovation Potential Beyond Company Boundaries, vol. 30, pp. 271?288, 2010.

S.  Ziebarth, Malzahn, N., Daems, O., and H. Hoppe, U., ?Creation and Matching of Competence Profiles in the German Digital Economy using Semantic Methods?, in Competence Management for Open Innovation. Tools and IT support to unlock the innovation potential beyond company boundaries, J.  Hafkesbrink, H. Hoppe, U., and Schlichter, J., Eds. EUL Verlag, 2010, pp. 69-92.