1. 16. http://cdsware.cern.ch/invenio/index.html (Last visited 25 May 2008).
2. 14. http://scoap3.org (Last visited 25 May 2008).
3. 11. J. Krause et al. (2007) Quantitative Study of the Geographical Distribution of the Authorship of High-Energy Physics Journals, http://scoap3.org/files/cer-002691702.pdf (Last visited 25 May 2008).
4. 10. S. Bianco et al. (2007) Report of the SCOAP3 Working Party, http://www.scoap3.org/files/Scoap3WPReport.pdf (Last visited 25 May 2008).