...you need but look for four issues of a crossover of these characters in 1994, starting with this "ashcan" book (which was a collection of work done to prepare for the series, with a cover by Gordon Purcell and Jerome Moore), and the following four issues, that contain the heart of the story, with DC covers by Sonia Hillios and Malibu covers by Scott Sava!
Part 1 DC and Malibu
Part 2 Malibu and DC
"Mirror, Mirror"), and even Worf (who became part of the Deep Space Nine cast), with the Star Trek: Deep Space Nine Worf Special #0 of December, 1995 with multiple stories by Dan Mishkin, Moose Baumann, Rob Davis, Anne Timmons, and Leonard Kirk, and art by Steve Erwin, John Montgomery, Rob Davis, Aubrey Bradford, Scott Reed, Terry Pallot and Leonard Kirk.
All this shows the ever changing and occasionally interacting world of Star Trek!