Physics Letters A
Physics Letters A > 2016 > 380 > 1-2 > 288-292
Physics Letters A > 2016 > 380 > 31-32 > 2437-2444
Physics Letters A > 2016 > 380 > 33 > 2525-2530
Physics Letters A > 2016 > 380 > 36 > 2892-2896
Physics Letters A > 2016 > 380 > 48 > 4083-4091