Wer geht dort?

From Author Wars - https://authorwars.com/books/wer-geht-dort-1703121.html

Overview:

Title: Wer geht dort?
Author: John W. Campbell, Jr.
Year: 1984
Type: Short Fiction

Editions/Publications:

Unknown. Fragezeichen Zukunft (Unknown, John W. Campbell, Jr., Moewig, ISBN-10: 3811867369, DM 7.80, 303 pages, Paperback, Anthology)