DOI (Digital Object Identifier)
it is a digital identifier for an electronic document and is used to identify electronic documents similar to an ISSN (journal) or ISBN (book). This system is developed and managed by the International DOI Foundation (IDF) - a non-profit organization, established on October 10, 1998.
A DOI number can be assigned for a book, book chapter, journal article, conference material, dissertation, and review.
Once assigned, the DOI number cannot be changed. The document retains the DOI number even if the ownership of it is transferred to another institution. If a document is ever deleted, its number cannot be reused.
In the Workflow application, in the description of the purpose of the contract, please provide detailed bibliographic data of the work for which the DOI number will be created.