ResearchGate is a network dedicated to science and research. Connect, collaborate and discover scientific publications, jobs and conferences. All for free.
Omeka is a free, flexible, and open source web-publishing platform for the display of library, museum, archives, and scholarly collections and exhibitions. Its “five-minute setup” makes launching an online exhibition as easy as launching a blog.
D. Maier, D. Rozenshtein, S. Salveter, J. Stein, und D. Warren. SIGMOD '82: Proceedings of the 1982 ACM SIGMOD international conference on Management of data, Seite 51--60. New York, NY, USA, ACM Press, (1982)
J. Howard. ICSE '76: Proceedings of the 2nd international conference on Software engineering, Seite 47--52. Los Alamitos, CA, USA, IEEE Computer Society Press, (1976)