The most common forms of plagiarism

It is a common form of plagiarism to copy foreign texts into scientific works without citing the source:

1. Text plagiarism: The literal adoption of one or more text passages without corresponding source reference.
2. Idea plagiarism: The reproduction or paraphrasing of a train of thought, whereby words and the sentence structure of the original are changed in such a way that the origin of the thought is blurred.
3. The translation of ideas and text passages from a foreign-language work, again without citing the source.
4. The adoption of metaphors, idioms or elegant linguistic creations without citing the source.
5. Plagiarism of quotations: the use of quotations found in a work of secondary literature to support one's own argument, whereby the quotations themselves are documented, but not the secondary literature used.