Open Physics
Open Physics > 2006 > 4 > 2 > 210-222
Open Physics > 2009 > 7 > 2 > 209-219
Open Physics > 2011 > 9 > 2 > 502-509
Open Physics > 2011 > 9 > 5 > 1315-1320
Open Physics > 2014 > 12 > 9 > 654-659
Open Physics > 2006 > 4 > 2 > 210-222
Open Physics > 2009 > 7 > 2 > 209-219
Open Physics > 2011 > 9 > 2 > 502-509
Open Physics > 2011 > 9 > 5 > 1315-1320
Open Physics > 2014 > 12 > 9 > 654-659