Kang, S.J. (2015). Leadership, organizational culture, knowledge productivity and value creation in four successful Korean companies. Thesis. Enschede: University of Twente (Promovendus)

Leadership Characteristics in Leading Korean Firms and Their Implications for HRD (Publication)

Snoek, M. (2014). Developing teacher leadership and its impact on schools. PhD Thesis. Amsterdam: University of Amsterdam (Promovendus)