Die Hugo Awards 2001 – 2017 Hardy Kettlitz

Memoranda Hardy Kettlitz

Memoranda Hardy Kettlitz

Memoranda Hardy Kettlitz

SF Personality Christian Hoffmann, Erik Simon, Hans-Peter Neumann, Hardy Kettlitz

Robert A. Heinlein Hardy Kettlitz

SF Personality Hardy Kettlitz

SF Personality Christian Hoffmann, Hardy Kettlitz, Joachim Körber

Alien Contact Jahrbuch 2002 Bernhard Kempen, Gerd Frey, Hannes Riffel, Hardy Kettlitz, Jakob Schmidt, Ronald Hoppe, Siegfried Breuer