Physics Letters A
Physics Letters A > 2016 > 380 > 36 > 2861-2869
Physics Letters A > 2016 > 380 > 37 > 2993-2998
Physics Letters A > 2016 > 380 > 43 > 3650-3654
Physics Letters A > 2016 > 380 > 36 > 2861-2869
Physics Letters A > 2016 > 380 > 37 > 2993-2998
Physics Letters A > 2016 > 380 > 43 > 3650-3654