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- [4] ON THE POSSIBILITY OF OBTAINING RADAR ECHOES FROM THE SUN AND PLANETS PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1952, 40 (06): : 660 - 666
- [5] HIGH-FREQUENCY RADAR ECHOES FROM THE SUN PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1960, 48 (08): : 1479 - 1479