SFX's new embargo behavior

An e-journal embargo can be defined as the elapsed period of time between a journal article's publication and its availability through an online interface. The presence of an embargo affects whether or not an article is accessible to the end user requesting it, so SFX keeps track of embargo periods as part of its threshold information. Sometimes SFX faces a situation in which it cannot accurately calculate whether the full text of an embargoed article will be available to the end user. It is in these ambiguous situations that SFX's embargo behavior has changed.