↑ Manning, Matthew K.; Dolan, Hannah, ed. (2010). “1990s”. DC Comics Year By Year A Visual Chronicle. Dorling Kinderley. tr. 259. ISBN978-0-7566-6742-9. The issue also featured four teaser comics that introduced a group of contenders all vying for the Superman name...A cloned Superboy escaped captivity in a yarn by writer Karl Kesel and artist Tom Grummett.Quản lý CS1: văn bản dư: danh sách tác giả (liên kết)
