Metadata collection

Crossref – All records from 2001 to 2026 (References: 26% | Abstracts: 100% | ORCIDS iDs: 53% | Affiliations: 26% | ROR IDs: 25% |Similarity Check URLs: 26% | License URLs: 26% | Text-Mining URLs: 75%)

DOAJ – All records from 2001 to 2026 (Abstract: 100% | DOI: 100% )

Indexcopernicus – All records from 2012 to 2026 (Full text: 100% | Abstract: 100% | Keywords: 100% | References: 100% | DOI: 100% )

Library of Science – All records from 2018 to 2026 (Full text: 100% | Abstract: 100% | Keywords: 100% | References: 100% | DOI: 100% | Affiliations: 100%)

BazTech – All records from 2006 to 2026 ( Abstract: 100% | Keywords: 100% | Affiliations: 100% | References: 100%)

EBSCO – Applied Science & Technology Source Ultimate – All records from 2025 to 2026 ( Abstract: 100% | Keywords: 100% | DOI: 100%)