Here is a list of their comic book titles:
Gladstone Generation 1 Walt Disney's Comics and Stories Donald Duck Mickey Mouse Uncle Scrooge Uncle Scrooge Adventures Donald Duck Adventures Mickey and Donald Duck Tales Gladstone Generation 2 Walt Disney's Comics and Stories Uncle Scrooge Donald Duck Adventures Uncle Scrooge Adventures Donald Duck Donald and Mickey Donald Duck and Mickey Mouse Walt Disney Giant Walt Disney's Comics and Stories Penny Pincher Uncle Scrooge and Donald Duck The Adventurous Uncle Scrooge McDuck