This text is translation of the novella "Planet of Exile" by Edmond Hamilton, included in magazine "Imaginative Tales/Space Travel", Volume 5 Number 4; July 1958, published in Internet Archives by Gerard Arthus, 2010-04-07, url: http://www.archive.org/details/Space_Travel_Volume_5_Number_4_, under Creative Commons license: Public Domain, http://creativecommons.org/licenses/publicdomain/
According to the included copyright notice:
"Space Travel; July 1958. Greenleaf Publishing Company. Copyright was issued in 1958, but no renewal was recorded, this work is Public Domain under Rule 6 of the Copyright Statutes of the United States. Etext created by Gerard Arthus.
Translation by Witold Bartkiewicz. Copyright for the translation is transferred by the translator to the Public Domain.