What are DOI numbers?
Digital Object Identifiers (DOIs) are a type of identifier serving to identify articles, journal issues and any other kind of digital object. DOIs are persistent throughout time and space: they remain fixed, even though the object’s web page may change. This is done via this resolution site. Logical Methods in Computer Science provides DOIs for both papers and issues. For example, the DOI of the first paper published in the journal is 10.2168/LMCS-1(1:1)2005 One can access the paper on the web `manually’ by visiting http://dx.doi.org and then typing in the DOI. Within another paper, the DOI can be cited and (simultaneously) turned into an archival quality live link using the latex package hyperref, as follows: \href{dx.doi.org/doi: 10.2168/LMCS-1 (1:1) 2005} {doi: 10.2168/LMCS-1 (1:1) 2005} Every paper of Logical Methods in Computer Science has a BIBTEX entry on its web page that includes a live link to the paper’s DOI. For more information on DOIs, other types of persistent identifier