User blog comment:DCFreak22/Mount Justice Authorized Guest Designations?/@comment-4473295-20120126213101/@comment-3465526-20120202005700

Tupka, even if you did know about that "rights" stuff, I understand it might not help when it comes to Wonder Girl. She's a derivative character from Wonder Woman (arguably she's the SAME character as Wonder Woman) and I've heard that unlike most comics creators of the time, William Moulton Marston ("Charles Moulton") sold the rights to Wonder Woman to DC with some really complex contract conditions on the sale.