P. Green, и S. Harper. International Conference on Computers Helping People with Special Needs, стр. 281--288. Germany, OCG Press, (июля 2000)Under the auspices of the UNESCO.
S. Harper. University of Manchester Institute of Science and Technology (UMIST), Manchester, UK, Master of Philosophy in Software Engineering, (сентября 1998)
S. Harper, и P. Green. International Conference on Computers Helping People with Special Needs, стр. 289--296. Germany, OCG Press, (июля 2000)Under the auspices of the UNESCO.
S. Harper, C. Goble, и S. Pettitt. Proceedings of the 10th International Conference on Human-Computer Interaction, 4, стр. 399--403. London, UK, Lawrence Erlbaum Associates, (2003)
S. Harper, S. Pettitt, и C. Goble. Computers Helping People with Special Needs -- Lecture Notes in Computer Science vol. 3118, стр. 430--437. Paris, France, 9th International Conference, ICCHP., Springer-Verlag, (июля 2004)