This document provides guidelines for properly citing sources and avoiding plagiarism in research papers submitted to DAAD. It outlines best practices for marking direct quotes, paraphrasing ideas from other works, and providing complete references. Direct quotes should be enclosed in quotation marks or set apart in an indented paragraph. Even when paraphrasing, the source must be cited using an abbreviation like "cf." followed by a complete reference. References can be given in footnotes, parenthetical citations, or endnotes, and should always include the page number to allow verification. Secondary sources must also attribute the original work. The goal is to clearly distinguish the researcher's own work from any influences or borrowings from other texts.