Physics Letters A
Physics Letters A > 2017 > 381 > 4 > 284-291
Physics Letters A > 2017 > 381 > 17 > 1490-1492
Physics Letters A > 2017 > 381 > 29 > 2298-2304
Physics Letters A > 2017 > 381 > 31 > 2470-2477
Physics Letters A > 2017 > 381 > 42 > 3627-3635