Chen, C.M. & Hsu, S.-H. (2008). Personalized Intelligent Mobile Learning System for Supporting Effective English Learning. Educational Technology & Society, 11(3), 153–180. Colpaert, J. (2004). From courseware to coursewear? Computer Assisted Language Learning, 17(3–4), 261–266. Gay, G., Stefanoe, M., Grace-Martin, M. & Hembrooke, H. (2001). The effects of wireless computing in collaborative learning environments. International Journal of Human-Computer Interaction, 13(2), 257–276. Geddes, S.J. (2004). Mobile learning in the 21st century: benefits to learners. In Proceedings of M-learn Conference 2004. Rome, Italy. Klopfer, E., Squire, K. & Jenkins, H. (2002). Environmental Detectives: PDAs as a window into a virtual simulated world. In Proceedings of IEEE International Workshop on Wireless and Mobile Technologies in Education (pp. 95–98). Vaxjo, Sweden: IEEE Computer Society. Koole, M. (2009). A model for framing mobile learning. In M. Ally (Ed.). Mobile Learning: Transforming the Delivery of Education & Training (pp. 25–47). Athabasca: AU Press. Kukulska-Hulme, A. (2009). Will mobile learning change language learning? ReCall, 21(2), 157–165. Kukulska-Hulme, A. & Shield, L. (2008). An overview of mobile assisted language learning: From content delivery to supported collaboration and interaction. ReCall, 20(3), 271–289. Oberg, A., & Daniels, P. (2012). Analysis of the effect a student-centred mobile language learning using handhelds. International Journal of Learning Technology, 5(1), 435–449. Oxford, R. & Oxford, J. (2009). Second Language Teaching and Learning in the Next Generation, http://llt.msu.edu/vol4num/review1.pdf, accessed Jul., 2010. Salaberry, M.R. (2001). The use of technology for second language learning and teaching: A retrospective. The Modern Language Journal, 85(i), 39–56. Sharples, M. (2000). The design of personal mobile technologies for lifelong learning. Computers & Education, 34(3–4), 177–193. Thornton, P. & Houser, C. (2005). Using mobile phones in English education in Japan. Journal of Computer Assisted Learning, 21(3), 217–228. Trifonova, A., Knapp, J., Ronchetti, M., & Gamper, J. (2004, January). Mobile ELDiT: Challenges in the transitions form an e-learning to an m-learning system. Trento, Italy: University of Trento. Retrived 08.02.2014, from http://eprints.biblio.unitn.it/archieve/00000532/01/paper4911.pdf.  Yamaguchi, T. (2005). Vocabulary Learning with a Mobile Phone, http://llt.msu.edu/vol10num1/emerging/default/html, accessed Jul., 2010. Yang Soon, G. (2005). Technology for Foreign Language Learning, http://www.readingmatrix.com/conference/pp/proceedings/gohyingsoon.pdf, accessed Dec., 2010. Yannick, J. (2007). M-learning: A pedagogical and technological model for language model for language learning on mobile phones. In J. Fong & F.L. Wang (Eds.). Blended Learning (pp. 327–339). London: Academic Press.