In Denmark, one of the main sources for donaldistic research and other donaldistic articles is "Carl Barks & Co.", with Freddy Milton as editor and main driving force. The first issue was published in 1974, and the fanzine continued until 2000 at a varied frequency; sometimes several issues per year, sometimes years passed without an issue. The fanzine presented much donaldistic research, including a large index of Danish Disney comic books (which is now maintained by the Inducks project and the original authors). Despite its name, the fanzine contained material on various fields within Disney comics, but still with an overweight on material about Carl Barks, the passing of whom unleashed the discontinuation of the fanzine.