I did and still do research on zines and zine culture and pubslished a few essays about it since 2004. You can download most of these here. Unfortunatelly, most of them are written in German, but there is also one essay called “Meanings of fanzines in the beginning of Punk in the GDR and FRG” which is in English. You can find it here.
Christian (archive of youth cultures/ Berlin, Germany)