Open Access
SHS Web Conf.
Volume 31, 2016
ERPA International Congresses on Education 2016 (ERPA 2016)
Article Number 01020
Number of page(s) 6
Published online 05 September 2016

© The Authors, published by EDP Sciences, 2016

Licence Creative Commons
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.