Dominik,
There will be a permanent link on the university servers once the thesis is accepted (its not yet, fingers crossed ;), so the dropbox one will disappear at some point. But if thats ok, sure you can use the link.
-Jussi
edit: Apparently Dropbox has "disabled access to this link as a security precaution", dunno why exactly. I´ll update the thread with the university link when I have it. Until then you can request me the pdf on email if interested.