- 12:26, 22 December 2020 diff hist -1 Exercise 1.1Z: ISDN Connection
- 12:26, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 12:25, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals
- 12:24, 22 December 2020 diff hist -1 Exercise 1.2: Signal Classification
- 12:17, 22 December 2020 diff hist +28 Exercise 1.2: Signal Classification
- 11:51, 22 December 2020 diff hist +7 Exercise 1.2: Signal Classification
- 11:19, 22 December 2020 diff hist +15 Exercise 1.1Z: ISDN Connection
- 11:01, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 10:59, 22 December 2020 diff hist -8 Exercise 1.1: Music Signals
- 10:29, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals
- 10:09, 22 December 2020 diff hist -7 Exercise 1.2: Signal Classification
