Sandage, Allan. (1999). "The first 50 years at Palomar: 1949–1999 the early years of stellar evolution, cosmology, and high-energy astrophysics". Annual Review of Astronomy and Astrophysics. 37 (1): 445–486. Bibcode:1999ARA&A..37..445S. doi:10.1146/annurev.astro.37.1.445.
Wallerstein, George; Oke, J. B. (2000). "The First 50 Years at Palomar, 1949–1999 Another View: Instruments, Spectroscopy and Spectrophotometry and the Infrared". Annual Review of Astronomy and Astrophysics. 38 (1): 79–111. Bibcode:2000ARA&A..38...79W. doi:10.1146/annurev.astro.38.1.79.
Sandage, Allan. (1999). "The first 50 years at Palomar: 1949–1999 the early years of stellar evolution, cosmology, and high-energy astrophysics". Annual Review of Astronomy and Astrophysics. 37 (1): 445–486. Bibcode:1999ARA&A..37..445S. doi:10.1146/annurev.astro.37.1.445.
Wallerstein, George; Oke, J. B. (2000). "The First 50 Years at Palomar, 1949–1999 Another View: Instruments, Spectroscopy and Spectrophotometry and the Infrared". Annual Review of Astronomy and Astrophysics. 38 (1): 79–111. Bibcode:2000ARA&A..38...79W. doi:10.1146/annurev.astro.38.1.79.