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Sonnenfleckenmaximum 1989
- Publication Year :
- 1990
- Publisher :
- Schweizerische Astronomische Gesellschaft, 1990.
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........ad6be4c734d6a1436a302f930cd0f7aa
- Full Text :
- https://doi.org/10.5169/seals-898893