Physics Letters A
Physics Letters A > 2012 > 376 > 35 > 2430-2434
Physics Letters A > 2012 > 376 > 35 > 2348-2351
Physics Letters A > 2012 > 376 > 35 > 2357-2360
Physics Letters A > 2012 > 376 > 35 > 2430-2434
Physics Letters A > 2012 > 376 > 35 > 2348-2351
Physics Letters A > 2012 > 376 > 35 > 2357-2360