B. Bachmair. Medienerziehung im Kindergarten. Neue Herausforderungen durch private Programme?, 3, Landesanstalt für Rundfunk Nordrhein-Westfalen, Düsseldorf, (1990)
A. Dickinger, A. Scharl, and A. Weichselbraun. Proceedings of the 5th International Conference on Knowledge Management
(I-KNOW 2005), page 20--27. Graz, Austria, (2005)
M. Choudhury, H. Sundaram, A. John, and D. Seligmann. WWW '09: Proceedings of the 18th international conference on World wide web, page 331--340. New York, NY, USA, ACM, (2009)
H. Kwak, C. Lee, H. Park, and S. Moon. WWW '10: Proceedings of the 19th international conference on World wide web, page 591--600. New York, NY, USA, ACM, (2010)
H. Kwak, C. Lee, H. Park, and S. Moon. WWW '10: Proceedings of the 19th international conference on World wide web, page 591--600. New York, NY, USA, ACM, (2010)
H. Kwak, C. Lee, H. Park, and S. Moon. Proceedings of the 19th international conference on World wide web, page 591--600. New York, NY, USA, ACM, (2010)
O. Zagovora, K. Weller, M. Janosov, C. Wagner, and I. Peters. (2018)cite arxiv:1809.06299Comment: Paper presented at 23rd International Conference on Science and Technology Indicators (STI 2018) in Leiden, The Netherlands.