Physics Letters A
Physics Letters A > 2002 > 294 > 3-4 > 129-133
Physics Letters A > 2002 > 294 > 3-4 > 175-178
Physics Letters A > 2002 > 294 > 5-6 > 314-318
Physics Letters A > 2002 > 294 > 5-6 > 253-257
Physics Letters A > 2002 > 294 > 5-6 > 292-296
Physics Letters A > 2002 > 294 > 5-6 > 304-307
Physics Letters A > 2002 > 294 > 5-6 > 319-326
Physics Letters A > 2002 > 294 > 5-6 > 271-277
Physics Letters A > 2002 > 294 > 5-6 > 308-313
Physics Letters A > 2002 > 294 > 5-6 > 287-291
Physics Letters A > 2002 > 294 > 5-6 > 278-286
Physics Letters A > 2002 > 294 > 5-6 > 258-260
Physics Letters A > 2002 > 294 > 5-6 > 261-270
Physics Letters A > 2002 > 294 > 5-6 > 297-303