6Boundaries A M, Sigrist B, Alevizos P D. Webometrics and the Self-Organization of the European Information Society. Draft report on task 2. 1 of the SOEIS projiect, Rome meeting,June 17 - 19,1999
7Bjomeborn L. Small-World Link Structures across an Academic Web Space: A Library and Information Science Approach. Ph. D. thesis from the Department of Informarion Studies, Royal School of Library and Information Science, Denmark ,2004
8Thelwall M. VauKhan L,Bjomeborn L Webometrics. Annual Review of Information Science and Technology,2005 39:81 - 135. by the American Society for Information Science and Technology. Information Today Inc. p82