Physics Letters A
Physics Letters A > 2016 > 380 > 1-2 > 238-241
Physics Letters A > 2016 > 380 > 1-2 > 282-287
Physics Letters A > 2016 > 380 > 5-6 > 768-772
Physics Letters A > 2016 > 380 > 16 > 1462-1468
Physics Letters A > 2016 > 380 > 18-19 > 1635-1640
Physics Letters A > 2016 > 380 > 38 > 3144-3148
Physics Letters A > 2016 > 380 > 39 > 3217-3221
Physics Letters A > 2016 > 380 > 40 > 3302-3306