Wrong combined

This german book:
https://www.librarything.com/work/25012723
i accidentally coombined it with Clive Cussler - Marauder.
I wanted to combine it with Clvie Cussler - Fast Ice.
I dont know how to split the combined back and do a correct combine on the german book

>1 icerno78: Is the German title Die Antarktis-Verschwörung? There seem to be 3 mixed in, not just this one latest.

Is it the one titled Die Antarktis-Verschwörung?

Combined at https://www.librarything.com/work/25556736

The correct german title for Marauder is "Operation Seewespe" -> https://www.librarything.com/work/31483772/details/255467314
The correct german title for Fast ice is "Die Antarktis-Verschwörung" -> https://www.librarything.com/work/details/255466984

Both of them look like their editions are combined in the correct place now, see:
https://www.librarything.com/work/25012723/editions/ - Marauder/Operation Seewespe
https://www.librarything.com/work/25556736/editions/ - Fast Ice/Die Antarktis-Verschwörung