About IETR-DOI Number This is the web site of the IETR-DOI, which provides information on the IETR-DOI (Digital Object Identifier) system. The IETR-DOI Number is a unique number given to the particular Journal paper which represents the details of the paper like Paper title, Author’s name, Journal Name, Volume and Issue, Year of Publication, Journal ISSN etc at one place on a single click. How to Search IETR-DOI Number? Step-1 Check/ Remember the IETR-DOI Number form IETR Online Journal Publication page. Step-2 Type or paste the unique IETR-DOI Ex.(IJEEDC-IETR-DOI-xxxx), at the search place of IETR-DOI Home page.(Be sure to enter all of the characters before and after the slash. Do not include extra characters, or sentence punctuation marks.)