Preprint Citation Index currently indexes preprints from five major repositories: arXiv, bioRxiv, ChemRxiv, medRxiv and It allows searching by topic, authors, etc. as well as cited reference searching. It profices a version history of preprints (where applicable) and links to citing preprint references as will as to citing references in journal articles, conference papers and patents.
Materials Indexed: Preprints Database Type: Index Interface Language: English Materials Language: English. And others Subject: Biochemistry, Biology, Chemical Engineering, Chemistry, Computer Science & Engineering, Materials Science & Engineering, Mathematics, Medicine, Physics Broad Category: Engineering, Sciences