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  • 1

    Coinmarketcap coinmarketcap.com

    Ranking of cryptocurrency and assets by market cap. Details and chart for each currency.

  • 2

    researchgate.net researchgate.net

    researchgate.net

  • 3

    ScienceDirect sciencedirect.com

    An information source for scientific, technical, and medical research. Subscription required for some sections.

  • 4

    reverso.net reverso.net

    reverso.net

  • 5

    Springer springer.com

    International publisher specialising in science, technology and medicine. Includes journal search and free online access to abstracts and tables of contents in over 500 journals and 2000 books.