Search results
Physics Letters A > 2001 > 278 > 5 > 271-279
Physics Letters A > 2000 > 270 > 1-2 > 62-74
Physics Letters A > 1999 > 259 > 2 > 140-151
Physics Letters A > 2001 > 278 > 5 > 271-279
Physics Letters A > 2000 > 270 > 1-2 > 62-74
Physics Letters A > 1999 > 259 > 2 > 140-151