Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page 1963 in Luxembourg:

"

* 18 December – Luxembourg is knocked out at the final stage of qualifying for the 1964 European Nations' Cup, losing a play-off against Denmark 1-0, having drawn 5-5 with the Danes on aggregate.