@BOOK{NAP12361, title = "A Strategy for the Explorer Program for Solar and Space Physics", doi = "10.17226/12361", url = "https://nap.nationalacademies.org/catalog/12361/a-strategy-for-the-explorer-program-for-solar-and-space-physics", year = 1984, publisher = "The National Academies Press", address = "Washington, DC" }