From this page the complete dissertation can be downloaded by following the link: 

Strijker, A. (2004). Reuse of Learning Objects in Context: Human and Technical Aspects. PhD dissertation, Faculty of Behavioural Sciences, University of Twente, Enschede, Netherlands. ISBN 90-365-2090-9 (7.3 Mb).  

A paperback can be ordered from for about 11 Euro. The individual parts can be downloaded separately following the links below:
Allard Strijker,
Feb 16, 2009, 1:05 AM