Världar med "anti-materia"
From Author Wars - https://authorwars.com/books/varldar-med-anti-materia-2979971.html
Editions/Publications:
- Unknown. Häpna!, juni-juli 1964 (Unknown, unknown, Grafiska Förlaget Kindberg & Söner, skr 1.80, 114 pages, Trade Paperback, MAGAZINE)