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DTSTAMP:20260811T123907Z
SUMMARY:Полет с научной целью на аэростате
DESCRIPTION:https://aviafan.ru/articles/polet-s-nauchnoj-celyu-na-aerostate
URL:https://aviafan.ru/articles/polet-s-nauchnoj-celyu-na-aerostate
DTSTART;VALUE=DATE:19210911
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