History: Batman and Superman — Partners, Fighters, Bed Sharers

The Man of Steel sequel will feature DC Comic's most prominent superheroes. They've met many times before.

DC New 52 - The Definitive Collecting Guide – Crushing Krisis

Beat on the Bats: The Bat-Family's Greatest Comic Book Fights

CommentaramaFilms: Superman A Liberal? Yeah, Probably

Batman Relationships

Every romantic relationship Wonder Woman has ever been in, ranked

Are Batman and Superman rivals? Why or why not? - Quora

Batman v Superman: Dawn of Justice, Warner Bros. Entertainment Wiki

Superman: Son of Kal-El Vol. 2: The Rising by Tom Taylor: 9781779520753

The Batman/Superman Story (Batman X Oc/Superman X Oc)

Batman vs. Predator is one of the best Batman comics ever, and it's gone - Polygon

Dave's Comic Heroes Blog: Superman Batman First Meetings?

Beat on the Bats: The Bat-Family's Greatest Comic Book Fights

Superhero - Batmania, TV, Inspiration

Composite Superman (Character) - Comic Vine

Comic Excerpt] Superman and Batman meet for the first time in Man of Steel #3 — how would you want to see these two characters meet in the DCU? : r/DCcomics