« Vorherige
Nächste »
Datenquelle
- Crossref21,541
- Web of Science (Lite)17,049
- Manual10,381
- Europe PubMed Central7,112
- METADATA.UB7,078
- PubMed6,933
- arXiv5,093
- OPENSCIENCE.UB1,143
- DBLP913
- Google Books656
- MLA217
- RePEc112
- CiNii EN12
- CiNii JP10