Variants

(1)
  1. “Only Time Travelers Need Apply,” as by Dr. Arlan Keith Andrews, Sr. and Dr. Stanley Schmidt, in Analog Science Fiction and Fact, June 1996.
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . written by [Error: Missing ']]' tag for wikilink]