Physics Letters A
Physics Letters A > 2009 > 373 > 4 > 426-429
Physics Letters A > 2009 > 373 > 4 > 454-457
Physics Letters A > 2009 > 373 > 4 > 413-417
Physics Letters A > 2009 > 373 > 4 > 430-433
Physics Letters A > 2009 > 373 > 4 > 418-421
Physics Letters A > 2009 > 373 > 4 > 409-412
Physics Letters A > 2009 > 373 > 4 > 473-479
Physics Letters A > 2009 > 373 > 4 > 489-495
Physics Letters A > 2009 > 373 > 4 > 422-425
Physics Letters A > 2009 > 373 > 4 > 462-465
Physics Letters A > 2009 > 373 > 4 > 458-461
Physics Letters A > 2009 > 373 > 4 > 466-472
Physics Letters A > 2009 > 373 > 4 > 480-483
Physics Letters A > 2009 > 373 > 4 > 496-500
Physics Letters A > 2009 > 373 > 4 > 434-440
Physics Letters A > 2009 > 373 > 4 > 441-447
Physics Letters A > 2009 > 373 > 4 > 484-488
Physics Letters A > 2009 > 373 > 4 > 401-408
Physics Letters A > 2009 > 373 > 4 > 448-453