Physics Letters A
Physics Letters A > 1999 > 260 > 3-4 > 209-217
Physics Letters A > 1999 > 260 > 3-4 > 203-208
Physics Letters A > 1999 > 260 > 3-4 > 314-321
Physics Letters A > 1999 > 260 > 3-4 > 294-299
Physics Letters A > 1999 > 260 > 3-4 > 308-313
Physics Letters A > 1999 > 260 > 3-4 > 175-181
Physics Letters A > 1999 > 260 > 3-4 > 182-189
Physics Letters A > 1999 > 260 > 3-4 > 247-252
Physics Letters A > 1999 > 260 > 3-4 > 169-174
Physics Letters A > 1999 > 260 > 3-4 > 279-285
Physics Letters A > 1999 > 260 > 3-4 > 195-202
Physics Letters A > 1999 > 260 > 3-4 > 286-293
Physics Letters A > 1999 > 260 > 3-4 > 262-268
Physics Letters A > 1999 > 260 > 3-4 > 234-239
Physics Letters A > 1999 > 260 > 3-4 > 269-278
Physics Letters A > 1999 > 260 > 3-4 > 225-233
Physics Letters A > 1999 > 260 > 3-4 > 300-307
Physics Letters A > 1999 > 260 > 3-4 > 218-224
Physics Letters A > 1999 > 260 > 3-4 > 240-246
Physics Letters A > 1999 > 260 > 3-4 > 253-261