Physics Letters A
Physics Letters A > 2016 > 380 > 7-8 > 848-855
Physics Letters A > 2016 > 380 > 20 > 1799-1803
Physics Letters A > 2016 > 380 > 44 > 3717-3723
Physics Letters A > 2016 > 380 > 48 > 4100-4104
Physics Letters A > 2016 > 380 > 7-8 > 848-855
Physics Letters A > 2016 > 380 > 20 > 1799-1803
Physics Letters A > 2016 > 380 > 44 > 3717-3723
Physics Letters A > 2016 > 380 > 48 > 4100-4104