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  I-Doser Free 16 Apr 15

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  WinStars 28 Apr 18

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  Math Mechanixs 27 Apr 18

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  BioStat 23 Sep 15

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  SO-Sieve 20 Jun 18

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  Deepsky Free 30 Oct 15

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  Solve Elec 5 Aug 15

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  Radioactive Decay Calculation Applet 29 Oct 15