The contracting agent : concepts and architecture of a generic software component for electronic business based on outsourcing of work / Andries van DijkSuccesfully managing IT enabled business transformations : methods and best practices for business-IT strategy, enterprise architecture and programme leadership / Andries van Dijk ; [ed.: Alice Saunders ... et al.]ICT-trends en innovatie / Andries van Dijk ; [red.: Redactiebureau Ron Heijer]