@BOOK{NAP550, author = "National Research Council", title = "Astronomy and Astrophysics for the 1980's, Volume 2: Reports of the Panels", isbn = "978-0-309-03334-3", doi = "10.17226/550", url = "https://nap.nationalacademies.org/catalog/550/astronomy-and-astrophysics-for-the-1980s-volume-2-reports-of", year = 1983, publisher = "The National Academies Press", address = "Washington, DC" }