Physics Letters A
Physics Letters A > 2016 > 380 > 1-2 > 242-247
Physics Letters A > 2016 > 380 > 41 > 3430-3433
Physics Letters A > 2016 > 380 > 48 > 4062-4069
Physics Letters A > 2016 > 380 > 1-2 > 242-247
Physics Letters A > 2016 > 380 > 41 > 3430-3433
Physics Letters A > 2016 > 380 > 48 > 4062-4069