Physics Letters A
Physics Letters A > 2014 > 378 > 7-8 > 617-622
Physics Letters A > 2014 > 378 > 16-17 > 1095-1098
Physics Letters A > 2014 > 378 > 18-19 > 1228-1232
Physics Letters A > 2014 > 378 > 7-8 > 617-622
Physics Letters A > 2014 > 378 > 16-17 > 1095-1098
Physics Letters A > 2014 > 378 > 18-19 > 1228-1232