Gravitationsröhren
From Author Wars - https://authorwars.com/books/gravitationsrohren-1327326.html
Overview:
- Title: Gravitationsröhren
- Author: uncredited
- Year: 1977
- Type: Essays
Editions/Publications:
- 1977 . Perry Rhodan, #820: Das Gravitationsgefängnis (1977, uncredited, Pabel-Moewig, DM 1.50, 68+xvi pages, digest, MAGAZINE)
- 1981 . Perry Rhodan, #820: Das Gravitationsgefängnis (1981, uncredited, Pabel-Moewig, DM 2.00, 68 pages, digest, MAGAZINE)