Q
Right of Quotation
Act on Copyright and Related Rights (Copyright Act) § 51 Quotations
It is permitted to copy, distribute and publicly reproduce a published work for the purpose of quoting, provided that the extent of use is justified by the specific purpose. This is particularly permissible if
1. individual works are included after publication in an independent scientific work to explain the content
2. positions of a work are cited after publication in an independent linguistic work,
3. individual passages of a published work of music are cited in an independent work of music.
The right to cite in accordance with sentences 1 and 2 includes the use of an illustration or other reproduction of the cited work, even if it is itself protected by a copyright or related right.
(Linked page in German.)