Publisher's note

摘要

Until now academic articles have been published in journals, on an issue by issue basis. While this ensured organised citation information, it created boundaries for the timing of each published article. Now online publishing is changing all of that, making it possible to publish citable articles with volume, issue and page numbers as and when they are ready - before an entire issue of the journal is finished.Furthermore readership styles and how information is gathered have changed quite considerably, now that most people access articles online. Searching online for relevant articles is mostly done by key words, instead of browsing through journals' table of contents listings.