Physics Letters A
Physics Letters A > 2001 > 282 > 6 > 336-342
Physics Letters A > 2001 > 289 > 1-2 > 21-26
Physics Letters A > 2001 > 291 > 4-5 > 185-189
Physics Letters A > 2001 > 292 > 1-2 > 1-11
Physics Letters A > 2002 > 293 > 5-6 > 211-215
Physics Letters A > 2002 > 296 > 1 > 1-8
Physics Letters A > 2002 > 297 > 5-6 > 273-278
Physics Letters A > 2002 > 298 > 2-3 > 67-72
Physics Letters A > 2002 > 299 > 1 > 1-7
Physics Letters A > 2002 > 299 > 1 > 15-18
Physics Letters A > 2002 > 300 > 4-5 > 327-333
Physics Letters A > 2002 > 302 > 5-6 > 273-279
Physics Letters A > 2002 > 303 > 2-3 > 140-146
Physics Letters A > 2002 > 303 > 2-3 > 121-124
Physics Letters A > 2002 > 305 > 6 > 322-328
Physics Letters A > 2002 > 305 > 6 > 359-364
Physics Letters A > 2002 > 306 > 1 > 14-20
Physics Letters A > 2003 > 307 > 4 > 189-195
Physics Letters A > 2003 > 307 > 4 > 179-182
Physics Letters A > 2003 > 308 > 2-3 > 110-115