https://www.scientificamerican.com/article/ukrainian-scientists-fear-for-their-lives-and-future-amid-russian-threat/?fbclid=IwAR2IJGeCbYjbweM7lMEFhPywDvXiuTy40m63dYhiVSBwTOm6TdlcucPDfus

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https://kpi.ua/en/13-02-08