Physics Letters A
Physics Letters A > 2016 > 380 > 3 > 370-376
Physics Letters A > 2016 > 380 > 9-10 > 1087-1092
Physics Letters A > 2016 > 380 > 13 > 1339-1340
Physics Letters A > 2016 > 380 > 34 > 2615-2618
Physics Letters A > 2016 > 380 > 41 > 3333-3339