On 3 Dec 2014, at 17:26, Christoph Ruehlemann <chrisruehlemann at googlemail.com> wrote:
> I'm looking for published research on the German discourse marker 'so'.
Carla Umbach has done a lot of work on 'so' and other discourse markers, e.g.
Umbach, C., Ebert, C. (2009) German demonstrative 'so' – intensifying and hedging effects. Sprache und Datenverabeitung (International Journal for Language Data Processing) 1-2/2009
Umbach, Carla & Helmar Gust. 2014. Similarity Demonstratives. Lingua 149, 74-93.
See
http://www.zas.gwz-berlin.de/umbach.html
for PDFs and further publications.
Hope this helps, Stefan