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S. Harper, and P. Green. International Conference on Computers Helping People with Special Needs, page 289--296. 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)
P. Green, and S. Harper. International Conference on Computers Helping People with Special Needs, page 281--288. Germany, OCG Press, (июля 2000)Under the auspices of the UNESCO.