1. Malinovschi, V. (2003). Didactica fizicii. Bucharest: EDP,.(Chapter 1).
2. Stoica, I. (2008). Modern Techniques of Evaluation of the Learning Excellence, The 7th Congress of the UES (p.21). Lisbon.
3. AAAS (1998). National Science Education Standard. Washington, D.C.: National Academy Press,.(Chapter 4).
4. AAAS (1990). Science Project 2061. New York: Oxford University Press,.(Chapter 4).
5. AAAS (1993). Benchmarks for Science Literacy. New York: Oxford University Press, (Chapter 1). http://lcross.arc.nasa.gov/education.htm. http://quest.nasa.gov/challenges/lcross2/. http://quest.nasa.gov/challenges/lcross3/. http://www.windows.ucar.edu/citizen_science/starcount/. http://quest.nasa.gov/challenges/lima/proposals.html. http://quest.nasa.gov/challenges/lima/proposals/stoica2.html.