abadideait's very frustrating how much of modern scholarship is like "here's a nice paper distributed online as pdf. It hinges on a source that was published in the Dark Ages, that is, after the public domain cutoff but before people started publishing their work online. There is neither hide nor hair of a single sheet of this 64-page booklet anywhere on the entire internet, yes I checked the crime sites. There is allegedly a physical copy in Germany."
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