Physics Letters A
Physics Letters A > 2016 > 380 > 4 > 577-580
Physics Letters A > 2016 > 380 > 38 > 3138-3143
Physics Letters A > 2016 > 380 > 38 > 3051-3056
Physics Letters A > 2016 > 380 > 4 > 577-580
Physics Letters A > 2016 > 380 > 38 > 3138-3143
Physics Letters A > 2016 > 380 > 38 > 3051-3056