“…Among the OERs are textbooks, study programs, notes, homework, exams, projects, audio, video and animation [42]. During the last decade, these open resources have become essential tools in Higher Education, reaching great development as specified in the recommendations on OER of the XL General Conference of UNESCO [43]. At this conference, the different educational institutions are encouraged to take advantage of open standards and repositories to ensure that OERs can be easily found, accessed, used, adapted and redistributed.…”