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jan 1, 2015 - ГОСТ Р 55750-2013

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Информационно-коммуникационные технологии в образовании. Метаданные электронных образовательных ресурсов. Общие положения

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Лента времени по нормативным документам

ByСергей Ядренников
13 Nov 2019
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jan 1, 2015
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~ 10 years ago
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