| |
http://de.wikipedia.org (24. March 2009)
|
| |
MIT Sloan Management Review, Vol. Winter (9. January 2009), pp. 45-52.
|
| |
|
| |
|
| |
WirtschaftsWoche (25. March 2009)
|
| |
|
| |
http://de.wikipedia.org (23. March 2009)
|
| |
http://de.wikipedia.org (19. November 2008)
|
| |
http://de.wikipedia.org (1. February 2009)
|
| |
http://de.wikipedia.org (10. December 2008)
|
| |
|
| |
http://de.wikipedia.org (9. March 2009)
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
http://en.wikipedia.org (12. March 2009)
|
| |
http://de.wikipedia.org (19. January 2009)
|
| |
http://en.wikipedia.org (11. March 2009)
|
| |
http://en.wikipedia.org (25. February 2009)
|
| |
http://en.wikipedia.org (19. March 2009)
|
| |
http://en.wikipedia.org (17. March 2009)
|
| |
http://de.wikipedia.org (09. March 2009)
|
| |
http://de.wikipedia.org (08. March 2009)
|
| |
http://de.wikipedia.org (01. March 2009)
|
| |
http://en.wikipedia.org (10. March 2009)
|
| |
|
| |
http://de.wikipedia.org (19. February 2009)
|
| |
|
| |
|
| |
(03. March 2009), pp. 18-30.
|
| |
21 - Das Leben gestalten lernen, No. 1. (2001), pp. 63-66.
|
| |
|
| |
|
| |
In Beiträge des Instituts für Umweltsystemforschung, No. 27. (2002)
|
| |
Information Wissenschaft & Praxis, Vol. 59, No. 2., pp. 77-90.
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
http://en.wikipedia.org (13. March 2009)
|
| |
|
| |
|
| |
http://en.wikipedia.org (01. March 2009)
|
| |
http://en.wikipedia.org (02. March 2009)
|
| |
|
| |
http://de.wikipedia.org (24. September 2008)
|