Dissertation records may be deposited for a single dissertation or thesis. DOIs are not assigned to collections of dissertations. It is also expected that the dissertation type will be used for deposit of items that have not been published in books or journals. If a dissertation is published as a book or within a serial, it should be deposited with the appropriate content type.
Constructing dissertation deposits
A dissertation deposit requires a title, a single author (deposited as <person_name>), institution, and approval date. Degree, ISBN, and record number information may also be included.
If a DAI has been assigned, it should be deposited in the identifier element with the id_type attribute set to "dai". If an institution has its own numbering system, it should be deposited in <item_number>, and the item_number_type should be set to "institution".