« Vorherige
Nächste »
Datenquelle
- Crossref18,637
- Web of Science (Lite)15,604
- Europe PubMed Central6,881
- PubMed6,832
- Manual4,175
- METADATA.UB3,409
- arXiv1,149
- OPENSCIENCE.UB1,040
- DBLP310
- MLA88
- RePEc57
- CiNii EN12
- CiNii JP10
- Google Books2