Open Physics
Open Physics > 2004 > 2 > 3 > 456-466
Open Physics > 2006 > 4 > 3 > 318-330
Open Physics > 2008 > 6 > 2 > 356-362
Open Physics > 2008 > 6 > 3 > 697-703
Open Physics > 2008 > 6 > 3 > 671-684
Open Physics > 2010 > 8 > 4 > 519-522
Open Physics > 2012 > 10 > 4 > 953-959
Open Physics > 2013 > 11 > 9 > 1074-1081
Open Physics > 2013 > 11 > 10 > 1212-1220
Open Physics > 2014 > 12 > 4 > 256-265
Open Physics > 2015 > 13 > 1