Cornell University News - "Ancient neutron star has planets, and others may, too: Arecibo-Cornell Astronomer" (Roger Segelken), 1/8/1992, Box: 53, Folder: 187. Arecibo Ionospheric Observatory records, 53-7-3581. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/284797 Accessed April 07, 2026.