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- [21] OBSERVATION OF NPG VLF TRANSMISSIONS AT TRACY CALIFORNIA DURING PATH EQUINOX JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS SECTION D-RADIO SCIENCE, 1965, D 69 (04): : 651 - +
- [25] UNUSUAL LONG PERIOD HF PHASE PATH FLUCTUATION OBSERVED ON 16 FEBRUARY, 1980 SOLAR ECLIPSE DAY ANNALES DE GEOPHYSIQUE, 1982, 38 (01): : 51 - 53
- [29] GEOMAGNETIC EFFECT OF THE TOTAL SOLAR ECLIPSE ON JULY 22, 1990 JOURNAL OF GEOMAGNETISM AND GEOELECTRICITY, 1991, 43 (04): : 319 - 321