Physics Letters A
Physics Letters A > 2014 > 378 > 5-6 > 570-576
Physics Letters A > 2014 > 378 > 16-17 > 1170-1173
Physics Letters A > 2014 > 378 > 20 > 1428-1433
Physics Letters A > 2014 > 378 > 5-6 > 570-576
Physics Letters A > 2014 > 378 > 16-17 > 1170-1173
Physics Letters A > 2014 > 378 > 20 > 1428-1433