Open Physics
Open Physics > 2008 > 6 > 1 > 84-96
Open Physics > 2012 > 10 > 4 > 821-835
Open Physics > 2012 > 10 > 5 > 1065-1071
Open Physics > 2013 > 11 > 4 > 397-411
Open Physics > 2013 > 11 > 10 > 1212-1220
Open Physics > 2014 > 12 > 1 > 32-41
Open Physics > 2014 > 12 > 2 > 123-131
Open Physics > 2015 > 13 > 1