Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Michael Kerres. Bunter, besser, billiger? Zum Mehrwert digitaler Medien in der Bildung (Why? On the Benefit of Digital Media in Education). it - Information Technology, 44(4):187-192, 2002. [doi]
Abstract is missing.