In other cases, as time passes or because of limitations or exceptions in the law, the owner’s control over
his/her work is reduced to some extent, thus turning it into a work in the public domain. This means that anyone
can access it without prior authorization. Hence the importance of pointing out that the permit for copyright of
the work can be used through obligatory and legal licenses which allow, under certain circumstances, the use
of the contents (Lipszyc, 1993).