Question License

Question ID 7504 (Universal ID 1561276687097736)

This question was written by Dahn,Ingo, derived from work by Staab,Nikolai, mb dahn,Ingo, mb Dahn,Ingo. This work is licensed under the IMathAS Community License (GPL + CC-BY).
The code that generated this question can be obtained by instructors by emailing dahn@vcrp.de.