Physics Letters A
Physics Letters A > 2016 > 380 > 39 > 3173-3177
Physics Letters A > 2016 > 380 > 40 > 3244-3252
Physics Letters A > 2016 > 380 > 43 > 3625-3629
Physics Letters A > 2016 > 380 > 39 > 3173-3177
Physics Letters A > 2016 > 380 > 40 > 3244-3252
Physics Letters A > 2016 > 380 > 43 > 3625-3629