At https://odin.jrc.ec.europa.eu a scientific database application hosting data sets for tests performed on engineering alloys has been enabled for data citation using DataCite DOIs. The collection consists of about 20,000 discrete data sets, of which to date approximately 10% have been assigned DOIs. For traditional scientific publications, it is typically the case that hundreds of data sets will be reported. Obviously, citing the data sets individually in the references section of the written publication is not practical. However, for transparency and reproducibility the full range of data sets needs to be cited.