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Fig. 1.
Observational data (dynamic radio spectrum) of June 13, 2014 from 04:15 UT to 14:55 UT by URAN-2 (Poltava, Ukraine). Period 1 corresponds to the time interval 04:15–08:00 UT, period 2 to 8:00 UT–10:10 UT, period 3 to 10:10–12:50 UT, and period 4 to 12:50 UT–14:55 UT.
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