Physics Letters A
Physics Letters A > 2006 > 356 > 1 > 26-34
Physics Letters A > 2006 > 356 > 1 > 8-16
Physics Letters A > 2006 > 356 > 1 > 79-84
Physics Letters A > 2006 > 356 > 1 > 44-50
Physics Letters A > 2006 > 356 > 1 > 59-64
Physics Letters A > 2006 > 356 > 1 > 65-71
Physics Letters A > 2006 > 356 > 1 > 51-58
Physics Letters A > 2006 > 356 > 1 > 35-43
Physics Letters A > 2006 > 356 > 1 > 85-88
Physics Letters A > 2006 > 356 > 1 > 17-25
Physics Letters A > 2006 > 356 > 1 > 72-78
Physics Letters A > 2006 > 356 > 1 > 1-7