Сборник материалов III Международной научно-практической конференции Научные стремления - 2012, 6-9 ноября 2012 года. Минск. Том 2

420 Pages · 2016 · 4.53 MB · Russian
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“ You often feel tired, not because you've done too much, but because you've done too little of what sparks a light in you. ” ― Anonymous
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