The Kaltenberg Knights Tournament has a ticket system where tickets are verified electronically at the entrance. This gives you the following options for obtaining tickets:

Print out your ticket yourself:
When ordering via the online ticket system, you have the option of printing out your ticket at home. It contains a unique electronic code that ensures that admission is only granted once for each ticket purchased.

Have your ticket sent to you:
You can also have your ticket sent to you. This ticket also contains a unique electronic code which ensures that each ticket purchased is only granted admission once.