Email this article 
Features of Educational Internet-Portal PFU. Problems of Implementation and Usage - PDF (Russian)
Copyright (c) 2009 Efremov A.P., Stroganov B.G.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Copyright (c) 2009 Efremov A.P., Stroganov B.G.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.