Open Physics
Open Physics > 2007 > 5 > 1 > 103-109
Open Physics > 2008 > 6 > 1 > 105-108
Open Physics > 2010 > 8 > 5 > 811-818
Open Physics > 2011 > 9 > 5 > 1315-1320
Open Physics > 2011 > 9 > 6 > 1488-1492
Open Physics > 2012 > 10 > 1 > 239-252
Open Physics > 2013 > 11 > 12 > 1680-1685