This Can be the variety assigned for your short article because of the publisher, and it's the one particular you may use to reference your post within the library catalogues. ISSN code (also known as as "ISSN construction" or "ISSN syntax") is often expressed as follows: NNNN-NNNC Afterward, in 1991, https://www.directivepublications.org/journal-of-applied-nanoscience/