R. Harper

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Harper, R. (2003): Correcting computer-based assessments for guessing. In J. Comp. Assisted Learning, 19 (1) pp. 2-8. http://dx.doi.org/10.1046/j.0266-4909.2002.00001.x

Harper, R., Randall, D., Smyth, N., Evans, C., Heledd, L., Moore, R. (2008): The past is a different place: they do things differently there. In: Proceedings of DIS08 Designing Interactive Systems , 2008, . pp. 271-280. http://doi.acm.org/10.1145/1394445.1394474

Harper, R. (2009): From tele presence to human absence: the pragmatic construction of the human in communicat. In: Proceedings of the HCI09 Conference on People and Computers XXIII , 2009, . pp. 73-82. http://doi.acm.org/10.1145/1671011.1671020