- 15:18, 25 December 2020 diff hist -3 Exercise 1.3: Calculating with Complex Numbers
- 15:09, 25 December 2020 diff hist -2 Exercise 1.2Z: Puls Code Modulation
- 15:05, 25 December 2020 diff hist +2 Exercise 1.2Z: Puls Code Modulation
- 15:00, 25 December 2020 diff hist -66 Exercise 1.2Z: Puls Code Modulation
- 14:55, 25 December 2020 diff hist -2 Exercise 1.2: Signal Classification
- 14:47, 25 December 2020 diff hist +23 Exercise 1.1Z: ISDN Connection
- 14:44, 25 December 2020 diff hist +12 Exercise 1.1: Music Signals
- 14:40, 25 December 2020 diff hist -9 Exercise 1.2Z: Puls Code Modulation
- 14:25, 25 December 2020 diff hist +1 Exercise 1.2Z: Puls Code Modulation
- 13:26, 22 December 2020 diff hist -1 Exercise 1.1Z: ISDN Connection
- 13:26, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 13:25, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals
- 13:24, 22 December 2020 diff hist -1 Exercise 1.2: Signal Classification
- 13:17, 22 December 2020 diff hist +28 Exercise 1.2: Signal Classification
- 12:51, 22 December 2020 diff hist +7 Exercise 1.2: Signal Classification
- 12:19, 22 December 2020 diff hist +15 Exercise 1.1Z: ISDN Connection
- 12:01, 22 December 2020 diff hist +4 Exercise 1.1: Music Signals
- 11:59, 22 December 2020 diff hist -8 Exercise 1.1: Music Signals
- 11:29, 22 December 2020 diff hist -1 Exercise 1.1: Music Signals
- 11:09, 22 December 2020 diff hist -7 Exercise 1.2: Signal Classification