TheDigitalObjectIdentifier(<ahref="http://www.esrf.eu/home/UsersAndScience/UserGuide/esrf-data-policy/doi.html">DOI</a>) is a code composed of digits and characters. It identifies data in a
Refertothe<ahref="http://www.esrf.eu/home/UsersAndScience/UserGuide/esrf-data-policy/doi/doi---concepts.html">DOIconcepts</a> page to find out what a session is
Refertothe<ahref="http://www.esrf.eu/home/UsersAndScience/UserGuide/esrf-data-policy/doi/doi---concepts.html">DOIconcepts</a> page to find out what a session is.