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References
Kress, Gunther; Pachler, Nobert (2007). «Thinking about the ‹m› in m-learning.» In Pachler, N. (ed,), Mobile Learning: Towards a Research Agenda. London: WLE Centre Occasional Papers in Work-based Learning 1. Available at: http://www.wlecentre.ac.uk/cms/files/occasionalpapers/mobilelearning_pachler_2007.pdf
Pachler, Norbert; Bachmair, Ben; Cook, John (2010). Mobile Learning: Structures, Agency, Practices. New York: Springer. https://doi.org/10.1007/978-1-4419-0585-7