European Conference on Technology Enhanced Learning, Ravenscroft, A., Lindstaedt, S., Kloos, C. D., & Hernández Leo, D. (2012). 21st Century learning for 21st century skills: 7th European Conference on Technology Enhanced Learning, EC-TEL 2012 Saarbrücken, Germany, September 18-21, 2012 Proceedings. Chennai, India: Springer.

European Conference on Technology Enhanced Learning, Andrew Ravenscroft, Stefanie Lindstaedt, Carlos Delgado Kloos, and Davinia Hernández Leo. 21st Century Learning for 21st Century Skills: 7th European Conference On Technology Enhanced Learning, EC-TEL 2012 Saarbrücken, Germany, September 18-21, 2012 Proceedings. Chennai, India: Springer, 2012.

European Conference on Technology Enhanced Learning, et al. 21st Century Learning for 21st Century Skills: 7th European Conference On Technology Enhanced Learning, EC-TEL 2012 Saarbrücken, Germany, September 18-21, 2012 Proceedings. Chennai, India: Springer, 2012.