Should cite, in any publication using data from the database, the contributors' original publications describing their data. Should send reprints of publications that use EPD data to the database centre. Should acknowledge contributors for use of unpublished data and for any advice they may have provided. No user can pass data on to another party. All users must obtain data from the central database.
Normal ethics apply to co-authorship of publications.
The contributor should be invited to be a co-author if a user makes significant use of a single contributor's data, or a single contributor's data comprise a substantial portion of a larger dataset analyzed, or a contributor makes a significant contribution to the analysis of the data or to the interpretation of the results. This guideline applies to unrestricted as well as to restricted data. In the case of synoptic studies that use pollen data from numerous sites it may be neither practical, possible, nor reasonable to contact all contributors or make them co-authors of the publication. It may even not be possible to cite all the publications that were used. Profit-making organizations may use the data, even for legitimate uses, only with the written consent of the Advisory Board, who will determine or negotiate the payment of any fee required.