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2013(e)ko irailaren 17(a), asteartea
2013(e)ko irailaren 16(a), astelehena
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2013(e)ko irailaren 15(a), igandea
Materia y antimateria
http://education.web.cern.ch/education/Chapter2/Teaching/anti_matter/lessons_ppt/knowing_anti_me_knowing_anti_you.ppt
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