• Publication: Perry Rhodan, #640: Das verrückte GehirnPublication Record # 778382 (View All Issues) (View Issue Grid)
• Editor: uncredited
• Date: 1985-05-07
• Catalog ID: PR3DE0640
• Publisher: Pabel-Moewig
• Price:
  DM 2.00^?DM: German (Deutsche) mark
• Pages: 68
• Format:
  digest^?Digest-size magazine, including both standard digest size, at about 7" by 4.5", and also large digest, such as recent issues of Asimov's, which are about 8.25" by 5.125".
• Type: MAGAZINE
• Cover: Perry Rhodan, #640: Das verrückte Gehirn (1973) • by Johnny Bruck (variant of Tödliche Grenze im All 1961)
• Notes: "Mai 1985" should be stated in the copyright section. Day of publication from the weekly schedule. 'Leserkontaktseite' should take four pages. The cover art should match the one for the novella's previous publications. For the cover design take a look at other 1985 issues of the magazine. Bruck is credited at Perrypedia.

Contents (view Concise Listing)

• 3 • Perry Rhodan Leserkontaktseite (Perry Rhodan #1237) • [Perry Rhodan Leserkontaktseite] • essay by Horst Hoffmann
• 3 • Alptraum eines Hansechefs • [Perry Rhodan shortfiction] • short story by Uwe Kimmel and
  Andreas Möhn^?Andreas Moehn
• 4 •  Comic (Perry Rhodan Leserkontaktseite) • interior artwork by
  Josef Hörndl^?Josef Hoerndl
• 6 •  Letters (Perry Rhodan #1237) • essay by various
• 6 • Textzitate aus PR-Romanen • essay by Bernhard Kletzenbauer
• 7 • Das verrückte Gehirn • [PR Zyklus 10: Das Kosmische Schachspiel • 640] • (1973) • novella by William Voltz