 However, to accommodate a security problem with Microsoft's Internet Explorer, they decided that they would soon refuse to register DOI suffixes that contain the colon character.The SICI is a recognized international standard and is in wide use by publishers and the bibliographic community, primarily as an aid to finding existing articles or issues.JSTOR adopted SICIs in 2001 as its primary article-level identifier and the core of its stable and citation-derivable URLs.