The initial screening for presentations at the working groups will be done on the basis of abstracts submitted to us. For each accepted presentation we expect the author(s) to provide a longer paper (5-15 pages in English [pdf]) or a public link to it in advance and allows us to make it available at the Preconference. We shall provide at least 20 minutes time online for each paper at the working group and expect the other participants to it having an understanding of the paper that makes the discussion of it more fruitful.