Carlson, K.C. "KC: LOC", Westfield Comics (Sept. 2008). Accessed Nov. 24, 2008: ". . . Mort Wieisinger's letter columns for the Superman titles . . . were big lists of 'goofs' that popped up in the books, that encouraged the worst kind of fan behavior (and indirectly inspired Stan [Lee] to create the No-Prize!)."