Indices of geomagnetic activity of the observatories Hartland (Ha), Eskdalemuir (Es) and Lerwick (Le) September 1972

• Book ID: 115956388
• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 68 KB
• Volume: 35
• Category: Article
• ISSN: 0021-9169
• DOI: 10.1016/0021-9169(73)90229-8