1
MPG Library Catalog
Gemeinsame Bibliothek beider Stuttgarter MPIs
http://aleph.mpg.de/F?func=file&file_name=find-b&local_base=stg01
2
Reference Database • Fulltext Database
The OSF Preprints search combines records from various preprint repositories, including arXiv, bioRxiv, Cogprints, PeerJ, PsyArXiv, RePEc and SocArXiv.
https://osf.io/preprints/