Best encyclopedic + scholarly knowledge sources by Modern Citation Reference
Same 15 sources, re-sorted by Modern Citation Reference only — different signal than the composite Index. The leader changes: DOI (CrossRef Resolver) takes the top position at A+ · 98.
DOI (CrossRef Resolver) leads best encyclopedic + scholarly knowledge sources on Modern Citation Reference at A+ · 98
- 1A+·98DOI (CrossRef Resolver)doi.org
International standard identifier resolver for academic citations (~150M+ DOIs).
- 2A+·95
Mozilla-stewarded web-platform reference since 2005; default citation for HTML, CSS, JS, Web APIs.
- 3A+·95
Open-access preprint server for physics, mathematics, computer science; ~2.4M papers since 1991.
- 4A·92
Crowd-edited encyclopedia with ~7M articles and per-article inline citation discipline.
- 5A·92
U.S. National Library of Medicine literature index covering ~36M biomedical citations.
- 6A·91
European Organization for Nuclear Research; primary source for particle physics + experimental high-energy physics.
- 7A·90
Peer-reviewed philosophy encyclopedia since 1995; gold-standard philosophy reference.
- 8A·88
Proceedings of the National Academy of Sciences — multidisciplinary peer-reviewed journal since 1914.
- 9A·86
U.S. economic research nonprofit; working-paper series + business-cycle dating standards.
- 10A·85Naturenature.com
Peer-reviewed science journal with rigorous methodology disclosure and open-data trends.
- 11B·84
Peer-reviewed multidisciplinary journal of AAAS; one of the two flagship general-science venues.
- 12B·82
Editor-supervised encyclopedia with named contributors + editorial-board oversight; complement to Wikipedia's crowd-edited model.
- 13B·80
Gold-standard systematic-review database for medical evidence since 1993.
- 14B·80
Premier U.S. computing society; ACM Digital Library indexes peer-reviewed CS publications.
- 15B·78
Top biology journal since 1974, published by Elsevier (Cell Press); the default citation in molecular biology.
Why this ranking is different
The composite SourceScore Index averages all three sub-scores — Citation Discipline, Modern Reference, and Citation Velocity. This page surfaces the SAME source pool but ranks ONLY by Modern Citation Reference. The biggest re-shuffle: National Bureau of Economic Research jumps 5 positions vs the composite Index ranking.
Use this view when modern citation reference is the signal that matters for your citation decision. The composite Index is the safer default; this dim-faceted view is the precision lens.