Physics Letters A
Physics Letters A > 2000 > 264 > 5 > 335-340
Physics Letters A > 2000 > 264 > 5 > 341-345
Physics Letters A > 2000 > 264 > 5 > 350-356
Physics Letters A > 2000 > 264 > 5 > 407-411
Physics Letters A > 2000 > 264 > 5 > 412-416
Physics Letters A > 2000 > 264 > 5 > 346-349
Physics Letters A > 2000 > 264 > 5 > 357-365
Physics Letters A > 2000 > 264 > 5 > 383-389
Physics Letters A > 2000 > 264 > 5 > 390-395
Physics Letters A > 2000 > 264 > 5 > 417-423
Physics Letters A > 2000 > 264 > 5 > 366-374
Physics Letters A > 2000 > 264 > 5 > 375-382
Physics Letters A > 2000 > 264 > 5 > 396-406
Physics Letters A > 2000 > 264 > 6 > 482-488
Physics Letters A > 2000 > 264 > 6 > 472-477
Physics Letters A > 2000 > 264 > 6 > 449-458
Physics Letters A > 2000 > 264 > 6 > 497-504
Physics Letters A > 2000 > 264 > 6 > 444-448
Physics Letters A > 2000 > 264 > 6 > 459-464