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This document may be used free of charge for research and private purposes as long as the complete source is cited. The use of the document for commercial purposes is subject to authorization and possibly a fee, and requires the written consent of the copyright holder, who has the right to prohibit use on a case-by-case basis.
Moreover, the document may not be shared on social media platforms or instant messaging services (which implies the transfer of rights to the respective provider) without the authorization of the copyright holder.