46Furthermore, it may be difficult, in particular for individuals who wish to post such links, to ascertain whether website to which those links are expected to lead, provides access to works which are protected and, if necessary, whether the copyright holders of those works have consented to their posting on the internet. Such ascertaining is all the more difficult where those rights have been the subject of sub-licenses. Moreover, the content of a website to which a hyperlink enables access may be changed after the creation of that link, including the protected works, without the person who created that link necessarily being aware of it.
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