1. HAMMOND, S., YOUNG, I. and COOK, A. (1978) Teaching by Telephone. Final Report to Social Science Research Council of Great Britain.
2. HOLLOWAY, S. and HAMMOND, S. (1975) Tutoring by telephone: a case study in the Open University. Communications Studies Group paper No. P/75025/HL.
3. Social interaction in blind people: an experimental analysis;KEMP;Human Relations,1986
4. Anatomy of a tutorial (or when is a tutorial not a tutorial?);L'HENRY-EVANS;Teaching at a Distance,1982
5. CYCLOPS telewriting tutorials;MCCONNELL;Teaching at a Distance,1982