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1 Feb 2006 Jahr - ГОСТ Р 52656-2006.

Beschreibung:

Образовательные интернет-порталы федерального уровня. Общие требования;

Zugefügt zum Band der Zeit:

Federal laws on distance education

ByАлексей

21 Nov 2019

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Datum:

1 Feb 2006 Jahr

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~ 19 years ago

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