Question License

Question ID 7500 (Universal ID 1561123864571639)

This question was written by dahn,Ingo, mb Dahn,Ingo, derived from work by Arps,Falko, mb Gaa,Julia, 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.