1. Council on Library and Information Resources, Washington D.C. and Library of Congress: 
Building a national strategy for digital preservation: issues in digital media archiving.  a collection of papers, 2002. (Available at  
http://www.digitalpreservation.gov/)
3. European Mathematical Society: 
The European Mathematical Information Service.  (Available at  
http://www.emis.de/)
4. Korać, Ognjanović, Simić, Dugandžić: PANDORA – Expert system for dating artifacts.  Proceedings of theM ECAI06 Workshop on Intelligent Technologies for CulturalM Heritage Exploitation, Riva del Garda, Italy, August 28 – September 1, 2006, pp. 40–44, 2006.
7. 
		Collected works of Bogdan Gavrilović.  Mathematical Institute, Belgrade, 2001.
8. Mijajlović, Ognjanović: 
A survey of certain digitization projects in Serbia.  Review of the National Center for Digitization, 4 (Proceedings of the Symposium Digital Preservation of Cultural Heritage, 16–17 September 2003, Borovets, Bulgaria), 52–61, 2004. (Available at  
http://elib.mi.sanu.ac.yu/)