In accordance with generally accepted standards the following may be regarded as authors of scientific publications:
1. those who have made an important contribution to the concept of the article,
2. substantially contributed to the collection and selection of data, or its analysis and interpretation,
3. worked on the manuscript or its critical edition pertaining to its content.
 
Acquisition of research funds, collection of data, or general supervision of the research group do not justify inclusion in the copyright of the article.