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Physics Letters A > 2011 > 375 > 39 > 3450-3458
Physica A: Statistical Mechanics and its Applications > 2010 > 389 > 21 > 4450-4461
Physics Letters A > 2011 > 375 > 39 > 3450-3458
Physica A: Statistical Mechanics and its Applications > 2010 > 389 > 21 > 4450-4461