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Open Physics > 2014 > 12 > 6 > 427-432
Open Physics > 2014 > 12 > 6 > 427-432
Open Physics > 2013 > 11 > 1 > 96-105
Open Physics > 2013 > 11 > 1 > 96-105
Open Physics > 2014 > 12 > 6 > 427-432
Open Physics > 2014 > 12 > 6 > 427-432
Open Physics > 2013 > 11 > 1 > 96-105
Open Physics > 2013 > 11 > 1 > 96-105