« Vorherige
Nächste »
Datenquelle
- Crossref18,560
- Web of Science (Lite)15,532
- Europe PubMed Central6,862
- PubMed6,815
- Manual4,145
- METADATA.UB3,409
- arXiv1,149
- OPENSCIENCE.UB1,032
- DBLP308
- MLA88
- RePEc57
- CiNii EN12
- CiNii JP10
- Google Books2