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  Парийский Николай Васильевич первый ученый-хирург на Дону История донской медицины

  https://web.archive.org/web/20170407234429/http://www.donvrem.dermartology.ru/Files/article/m13/0/art.aspx?art_id=193

  Keine Beschreibung vorhanden.

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  First Soviet helicopter (1930-1932) Cheryomukhin TsAGI 1-EA (ЦАГИ 1-ЭА) - YouTube

  https://www.youtube.com/watch?v=rx565dqF-5M

  Тhe first flight on November 16 1930 on height over fifty meters. Record-setting flight on August 14 1932 the height of 605 meters is reached.(information wa...

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