(21 Mar 2003)
(18 Apr 2006)
Complex Networks (2004), pp. 337-370.
PNAS, Vol. 103, No. 23. (6 June 2006), pp. 8577-8582.
(7 Aug 2007)
Social Networks, Vol. 29, No. 2. (May 2007), pp. 173-191.
(3 Oct 2006)
Proceedings of the National Academy of Sciences, Vol. 104, No. 18. (1 May 2007), pp. 7332-7336.
(1 Sep 2006)
(2003), pp. 266-275.
Tourist Studies, Vol. 5, No. 2. (1 August 2005), pp. 115-132.
(8 May 2003)
The American Journal of Sociology, Vol. 78, No. 6. (1973), pp. 1360-1380.
(4 Aug 2008)
(29 Sep 2006)
Journal of the Operational Research Society, Vol. 58, No. 12. (December 2007), pp. 1605-1611.
(2005), pp. 28-35.
(26 Jun 2007)
Physical Review Letters, Vol. 93, No. 21. (2004)
(5 Jul 2007)
(9 Oct 2006)
pp. 103-140.
(31 May 2007)
Abstraction, Reformulation, and Approximation: 4th International Symposium, SARA 2000, Horseshoe Bay, Texas, USA, July 2000. Proceedings (2000), 322.
(2007), pp. 290-299.
New J. Phys., Vol. 9, No. 6. (June 2007), 179.
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 74, No. 3. (2006)
(2006), pp. 698-707.
(4 Nov 2002)
(7 Mar 2007)
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 74, No. 1. (2006)
Physical Review Letters, Vol. 86, No. 25. (18 June 2001), 5835.
Journal of the Royal Statistical Society: Series C (Applied Statistics), Vol. 53, No. 2. (April 2004), pp. 249-260.
Journal of Nonverbal Behavior, Vol. 15, No. 4. (1 December 1991), pp. 215-232.
(2005), pp. 9-16.
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 69, No. 2. (2004)
(2006), pp. 1175-1180.
The American Journal of Sociology, Vol. 92, No. 5. (1987), pp. 1170-1182.
(30 Oct 2003)
Social Networks, Vol. 25, No. 2. (May 2003), pp. 103-140.
(2003)