@BOOK{NAP630, author = "National Research Council", title = "Gravitation, Cosmology, and Cosmic-Ray Physics", isbn = "978-0-309-03579-8", doi = "10.17226/630", url = "https://nap.nationalacademies.org/catalog/630/gravitation-cosmology-and-cosmic-ray-physics", year = 1986, publisher = "The National Academies Press", address = "Washington, DC" }