INDEXING

CrossRef (https://www.crossref.org/)

LENS (https://www.lens.org/)

Microsoft Academic (https://academic.microsoft.com)

OCLS WorldCat (https://www.worldcat.org)

Scilit (https://www.scilit.net/about)

Dimensions (https://app.dimensions.ai/ )

Russian Scientific Citation Index (https://elibrary.ru/title_about.asp?id=67180)