About DOI
Digital Object Identifier (DOI): The DOI identification system for digital media has been designed to provide persistent and reliable identification of digital objects. Information on the DOI and its governing body, the International DOI Foundation, can be found at http://www.doi.org. In the editions of OandHS papers, the DOI appears at the top of the first page in its PDF version; in the printed editions, the DOI appears in the same location as in the PDF version.