Martin Ph. (2011). Collaborative knowledge sharing and editing. International Journal on Computer Science and Information Systems (IJCSIS; ISSN: 1646-3692 - two issues per year), Volume 6, Issue 1 of 2011.
(here is also the PDF version "as published" but less well formatted)
This is an extended version (12 pages instead of 8) of the following conference article which "has been considered among the best papers of Informatics 2010".
Martin Ph. (2010b). Collaborative ontology sharing and editing. Proceedings of Informatics 2010 (pp. 11-18; ISBN: 978-972-8939-19-9; acceptance rate in 2010: 14%), Freiburg, Germany, July 26-31, 2010.