(2006), pp. 38-47.
Lecture Notes in Computer Science, Vol. 2150 (2001)
Future Generation Computer Systems, Vol. 23, No. 5. (June 2007), pp. 702-713.
(06 July 2006)
(1 September 2003)
Social Networks, No. 27. (2005), pp. 55-71.
10th International Conference of Information Visualization (July 2006), pp. 258-263.
(2006), pp. 193-202.
(2006), pp. 36-39.
O'Reilly Network: (9 September 2005)
Library Hi Tech, Vol. 23, No. 4. (January 2005), pp. 469-480.
Science, Vol. 311, No. 5757. (6 January 2006), pp. 88-90.
J. Inf. Sci., Vol. 32, No. 2. (April 2006), pp. 198-208.
(18 Aug 2005)
D-Lib Magazine, Vol. 11, No. 4. (April 2005)
(01 December 1999)
(20 July 2006)
Social Networks, Vol. 1, No. 3., pp. 215-239.
(02 May 2002)
Computer Networks, Vol. 33, No. 1. (June 2000), pp. 309-320.
Proc Natl Acad Sci U S A, Vol. 97, No. 21. (10 October 2000), pp. 11149-11152.
Proc Natl Acad Sci U S A, Vol. 99 Suppl 1 (19 February 2002), pp. 2566-2572.
Physica A: Statistical Mechanics and its Applications, Vol. 311, No. 3-4. (15 August 2002), pp. 590-614.
Reviews of Modern Physics, Vol. 74, No. 1. (2002)
(01 April 2003)
(1 December 2004)
(6 Jan 2004)
(17 April 2006)
(10 April 2001)
(19 November 2003)
AMERICAN SOCIOLOGICAL REVIEW,, Vol. 69 (April 2004), pp. 213-238.
The American Journal of Sociology, Vol. 78, No. 6. (1973), pp. 1360-1380.
(31 May 2005)
International Journal of Geographical Information Science, Vol. 19, No. 5. (May 2005), pp. 501-536.
Cartography and Geographic Information Science, Vol. 32, No. 2. (April 2005), pp. 67-68.
(10 Apr 2006)
Complexity, Vol. 10, No. 4. (18 April 2005), pp. 57-67.
Annals of the Association of American Geographers, Vol. 95, No. 1. (March 2005), pp. 223-225.
(28 Nov 2000)
Proc Natl Acad Sci U S A, Vol. 98, No. 2. (16 January 2001), pp. 404-409.