What do I have to keep in mind when quoting from other works?

Plagiarism is a very serious issue in the literary community. Therefore, the use of any verbatim (as well as altered and/or paraphrased) passages from other works must be done very carefully. As a rule, short quotations from other works are permitted if necessary for the paper (e.g. in order to support a statement), but only if the quote is cited fully and correctly.

Adopting large portions of text such as passages, figures, tables, etc. from other works is strictly prohibited for copyright reasons. This also applies to any text appendices. If there is any doubt, the parts of the manuscript in question must be removed. Finally, ‘US-fair use regulations’ (see: ‘fair use’ at wikipedia.org) must also be observed.