Selim, A., and V. Grupchev. “ACHIEVEMENT OF MPEG - 7 and MPEG - 21 AS STANDAERS FOR ACCESS, DISTRIBUTION AND MANAGEMENT WITH INFORMATION”. International Scientific Journal Vision, vol. 3, no. 1, Mar. 2018, pp. 75-92, https://visionjournal.edu.mk/social/index.php/1/article/view/39.