Physics Letters A
Physics Letters A > 2016 > 380 > 1-2 > 166-170
Physics Letters A > 2016 > 380 > 4 > 540-547
Physics Letters A > 2016 > 380 > 17 > 1526-1534
Physics Letters A > 2016 > 380 > 1-2 > 166-170
Physics Letters A > 2016 > 380 > 4 > 540-547
Physics Letters A > 2016 > 380 > 17 > 1526-1534