Dear Christian, this is in response to your querie about Frontier Films. The "German book" was published in spring 1991: Mo Beyerle, Christine N. Brinckmann, eds. DER AMERIKANISCHE DOKUMENTARFILM DER 60ER JAHRE: DIRECT CINEMA UND RADICAL CINEMA (Frankfurt/M: Campus, 1991). It is a collection of articles on documentary films of the 60s including an extensive bibliography. Not exactly Frontier films, but we (I was involved in the documentary research project funded by Volkswagen Foundation which resulted in all these publications) put together an extensive bibliography on American documentary films (including Frontier films) which will be published by John F. Kennedy Institut, Berlin. I can send you a disk with the WP file of it, if you are really interested. In addition to the book published already there are a number of other publications in the works: a special issue of AMERIKASTUDIEN on city documentaries which will be published this summer, a book on labor history documentaries, one on war documentaries (manuscript completed), a FRAUEN UND FILM issue on documentaries by women (to be published this summer) and a book on documentaries by and about AfroAmericans. Get in touch if you have further questions. Also (for those people in Germany who subscribe to SCREEN-L) we put together an archive of 120 American documentaries, available for rent as 16mm film or video. All films are available from Institut fuer den Wissenschaftlichen Film, Nonnenstieg 72, 3400 Goettingen. Hope this helps, eva.