Linguisticher Nachmittag 2015 Afternoon of Linguistics 2015

I had an informal presentation for linguists at this event, with the title: Are there really isoglosses? - Possible methods to quantify boundaries of variants

Which was about methods and ideas that could overtake the role of the claassical isoglosses, or help assess what an isogloss means in the delineation of two variants for a linguistic phenomenon.