There are different views on when co-authorship is appropriate. Different professional associations use different guidelines (e.g. the American Psychological Association, the International Committee of Medical Journal Editors and the National Institute of Health).
The ACLC Advisory Board has discussed the various approaches and has decided on the authorship rules as proposed by the International Committee of Medical Journal Editors. This rules will apply to all ACLC members. All named authors should meet the following three conditions:
Fulfilling all these conditions is a necessary condition to be an author. It is advisable in any project for co-authorship to be explicitly discussed with all possible parties before any writing takes place. For PhD candidates this should happen at the beginning of the project in the research planning phase. Where the work is directly a result of the PhD project, the PhD candidate will be first author. In other projects, order of authorship should be decided on the basis of importance of contribution and otherwise alphabetically.