The copyright for the logo of the "Lin|gu|is|tik – Portal für Sprachwissenschaft" belongs to Bettina Burkardt:
The work of the graphics designer may not be altered either in the original or the reproductions without her agreement. Any imitation, even of parts of the work, is forbidden.
The logo may be used only for the agreed type of use i.e. for the identification of the virtual library of linguistics (Lin|gu|is|tik – Portal für Sprachwissenschaft) and the content and texts contained therein.