Mark songs as "other language version" of original?

In my collection I have records with 2nd language versions of songs,

e.g. Udo Lindenberg’s “Reeperbahn” is a German version of Beatles’ “Penny Lane”
or Stefan Gwildis’ “Gestern war gestern” is German version of Marc Cohn’s “Walking in Memphis”

I can add the composer of original to the German song and the German artist as lyricist but that makes no connection between original and German version what is that I’d like to have…

Any suggestions?