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- [21] LF AND MF FIELD STRENGTH MEASUREMENTS OVER GREAT DISTANCES - FINAL REPORT NACHRICHTENTECHNISCHE ZEITSCHRIFT, 1975, 28 (01): : 30 - 32
- [22] CALCULATION OF GROUND-WAVE FIELD STRENGTH OVER A COMPOSITE LAND AND SEA PATH PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1949, 37 (05): : 489 - 496
- [23] DETERMINATION OF TEMPERATURE AND ROUGHNESS OF SEA AND LAND SURFACES BY VHF RADIOMETRIC POLARIZATION MEASUREMENTS IZVESTIYA AKADEMII NAUK SSSR FIZIKA ATMOSFERY I OKEANA, 1984, 20 (05): : 431 - 437