Cornell Chronicle - "Planetary scientist Don Campbell named director of Cornell center that manages NSF's Arecibo Observatory" (Blaine Friedlander), 5/1/2008, Box: 54, Folder: 376. Arecibo Ionospheric Observatory records, 53-7-3581. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/285027 Accessed April 08, 2026.