| 其他書名 | Flare areas and importance classifications. II. |
| 出版 | Geophysics Research Directorate, Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, 1961 |
| URL | http://books.google.com.hk/books?id=reB7B_W5-kgC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |