- Author: Roy Chester Author Record # 294202
- Language: German
- Used As Alternate Name By: Konrad Schaef, unknown
- Note: Konrad Schaef stated that only one of the 'Roy Chester' stories: 'Die unheimlichen Kegel' was his. Utopia Zukunftsroman #193 announces #194 (Planetenstürmer) as a story by Josef Cepak, possibly the true author.
Alternate Name. See:
Konrad Schaef, unknown
(or view all titles published using this alternate name)