In den Fängen der Außerirdischen

From Author Wars - https://authorwars.com/publications/in-den-fangen-der-ausserirdischen-677289.html

Overview:

Title: In den Fängen der Außerirdischen
Author: Wolfgang Klesl, Viktor Straub
Year: 1971
ISBN-10: 3872545167
Publisher: Julius Breitschopf
Pages: 127
Binding: Hardcover
Type: Novel
Title Reference: In den Fängen der Außerirdischen
Notes: Data from Goodreads. The Publication Series UFO is not the same as the TV show after this volume, as it includes a non-series book and a Space 1999 one. The title of the TV show in Germany when it's first shown in 1974 is actually "UFO - Weltraumkommando S.H.A.D.O." Authors' full names from ufoseries.com.