Physics Letters A
Physics Letters A > 2008 > 372 > 8 > 1219-1227
Physics Letters A > 2008 > 372 > 11 > 1867-1872
Physics Letters A > 2008 > 372 > 12 > 2010-2016
Physics Letters A > 2008 > 372 > 16 > 2855-2861
Physics Letters A > 2008 > 372 > 24 > 4399-4406
Physics Letters A > 2008 > 372 > 30 > 4973-4976
Physics Letters A > 2008 > 372 > 38 > 5944-5950