Note: There may be some indication to think that the first volumes in this series are still part of the preceding series 'Ullstein 2000'; after all the logo still appears on the covers and title pages.

But:
• 'Science Fiction' now also appears on these pages
• On p. 1 now 'Science Fiction' is stated (instead of 'ein Ullstein Buch')
• The copyright page states 'Science Fiction'
• Now only 'Sf' appears on the spine
• Last, but not least, the new ongoing numeration also points towards a new pub. series