This book is published in Finland and is out in bookstores June 2010. You can order this book from Talentum book store or if you live outside Finland, from Academic bookstore (Akateeminen Kirjakauppa).
This is my dissertation that I defended in the fall of 2004. It is very relevant now as the topic was about software product platforms and how software vendors can apply a platform for derivative software development using software product line engineering. The dissertation can be downloaded from my schools web-site.