3 ms·
what's that?
by p-christ 4y ago
what's that?
- Silverback_VII 4y ago5min video explaining it: https://youtu.be/DoQoeK53bP8 https://youtu.be/DoQoeK53bP8 or: https://www.supermemo.com/de/archives1990-2015/help/read https://www.supermemo.com/de/archives1990-2015/help/read