Duell unter der Doppelsonne

From Author Wars - https://authorwars.com/publications/duell-unter-der-doppelsonne-449679.html

Overview:

Title: Duell unter der Doppelsonne
Author: W. Voltz, K. H. Scheer
Year: 1967
Publisher: Balowa / Gebrüder Zimmermann
Price: DM 8.80
Pages: 272
Binding: Hardcover
Type: Novel
Title Reference: Duell unter der Doppelsonne
Notes:
- This is a fix-up by K. H. Scheer using two novellas of the Perry Rhodan series:
  115: Der Imperator und das Ungeheuer by William Voltz, and
  116: Duell unter der Doppelsonne by K. H. Scheer
- Only Scheer's name appears on the cover, the actual authors are named inside the book.
- All data taken from sf-leihbuch.de