The writing of this document was made possible under a grant of the German Ministry for Education and Sciences (BMB+F grant number 01 IV B01) within the BITS project.
Angela Baumann and Tania Ellbogen from the BITS team helped tremendously with the research and overall structure of the document. Alexander Steffen was responsible for most of the logistics for this project, did the interviews with external sources and also helped with the overall structure. Christoph Draxler and Phil Hoole tuned the final manuscript to proper English and gave many useful hints.
Aside from the staff members of the BITS project and the Bavarian Archive for Speech Signals (BAS) we would like to thank Henk van den Heuvel for his valuable contributions.