arXiv - an open-access archive containing approximately 2.4 million scientific articles in the fields of physics, mathematics, computer science, biology, finance, statistics, electrical engineering, systems science, and economics. The materials on the site are not peer-reviewed.
CaltechAUTHORS - the research repository of the California Institute of Technology, which includes journal articles, dissertations, patents, books, conference papers, book chapters, and websites.
SSRN - an interdisciplinary research platform that supports the exchange of early research findings, the development of ideas, and the evaluation of scientific achievements by scholars around the world. The platform hosts 1,463,042 scientific works and features contributions from 1,871,574 researchers across more than 65 subject areas.
Zenodo - аn open repository for all scientific works, where each uploaded item is assigned a Digital Object Identifier (DOI). The Zenodo platform is integrated with Mendeley, ORCID, Crossref, and OpenAIRE systems.
Cogprints - аn archive of materials in philosophy, psychology, artificial intelligence, computer science, and mathematics.
vovr - а scientific and pedagogical journal that publishes the results of interdisciplinary fundamental and applied research focused on the current state of higher education in Russia.
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