DC Universe by Len Wein

"Originally published in single magazine form in Teen Titans 18, The Phantom Stranger 20-24, Justice League of America 100-102, Action Comics 419-420, 422-423, 425-426, 429, 432, DC Comics presents 27-29, JLA 80-page Giant 2, DC retroactive: Green Lantern; The '80S 1 and Swamp Thing winter special 1"--Publisher marketing.