A dissertation is a scientifically significant work consisting of new research results. It can be a monograph or an article-based dissertation consisting of individual articles and a summarising report.
 
All doctoral dissertations must meet the following scholarly criteria:  a) contain new scientific knowledge, b) demonstrate critical thinking, c) demonstrate profound knowledge of the field, and d) demonstrate the mastery of appropriate methods and the ability to apply them in practice. In addition, doctoral dissertations must e) be academically convincing, f) contain well-grounded research results, and g) demonstrate academic integrity and follow the norms of ethical research.

Doctoral dissertations typically correspond to four years of full-time work.