Citations
Correspondence with the Leiden Observatory, 1959, GBR/0180/RGO 9/463. Cambridge University Library. |
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Correspondence with the Leiden Observatory, 1959, GBR/0180/RGO 9/463. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/99978 Accessed January 30, 2025. |