Drift rate dependence on frequency according to the observations of type III and narrow-band type-III-like bursts on June 13, 2014. Panel A: periods 1 and 2, and panel B: periods 3 and 4. In panel A the dashed line linear regression with corresponding observationally measured values (asterisks with error bars) are shown in blue and they are related to the interval 08:00–09:00 UT when CME 1 was detected, and similarly the solid line and corresponding measured values are shown in red for the interval 09:00–10:10 UT, when CME 2 was detected. In panel B again the solid line and corresponding measured values are given in green and they show results for the time interval 12:50 UT–14:55 UT, when CME 3 was detected. In both panels for data and lines in period 1 and period 3, black is used.