0 a unique series of numbers attached to a piece of digital information such as a website, file, or online article:
A digital object identifier is a permanent identifier given to an electronic document.
In the citation of online journals and similar resources, an address-independent Digital Object Identifier has been supplied where available.
The company is committed to enhancing its offering with digital object identifier registration as part of the peer-review process.
A DOI (Digital Object Identifier) is a kind of ISBN for internet documents which guarantees that you find the text also if its internet address changes.