Richter, T., T. Kretschmer, C. M. Stracke, A. Bruce, T. Hoel, E. Megalou, I. Mazar, and S. Sotirou. “OPEN EDUCATIONAL RESOURCES IN THE CONTEXT OF SCHOOL EDUCATION: BARRIERS AND POSSIBLE SOLUTIONS”. European Scientific Journal, ESJ, Vol. 10, no. 19, July 2014, doi:10.19044/esj.2014.v10n19p%p.