Physica A: Statistical Mechanics and its Applications
Physica A: Statistical Mechanics and its Applications > 2004 > 340 > 1-3 > 388-394
Physica A: Statistical Mechanics and its Applications > 2004 > 340 > 4 > 580-589
Physica A: Statistical Mechanics and its Applications > 2004 > 340 > 4 > 607-616