Physics Letters A
Physics Letters A > 2016 > 380 > 13 > 1241-1246
Physics Letters A > 2016 > 380 > 13 > 1339-1340
Physics Letters A > 2016 > 380 > 21 > 1830-1838
Physics Letters A > 2016 > 380 > 34 > 2628-2631
Physics Letters A > 2016 > 380 > 13 > 1241-1246
Physics Letters A > 2016 > 380 > 13 > 1339-1340
Physics Letters A > 2016 > 380 > 21 > 1830-1838
Physics Letters A > 2016 > 380 > 34 > 2628-2631