Open Physics
Open Physics > 2009 > 7 > 3 > 568-574
Open Physics > 2010 > 8 > 1 > 33-41
Open Physics > 2013 > 11 > 6 > 824-835
Open Physics > 2013 > 11 > 12 > 1629-1637
Open Physics > 2014 > 12 > 3 > 203-214
Open Physics > 2009 > 7 > 3 > 568-574
Open Physics > 2010 > 8 > 1 > 33-41
Open Physics > 2013 > 11 > 6 > 824-835
Open Physics > 2013 > 11 > 12 > 1629-1637
Open Physics > 2014 > 12 > 3 > 203-214