Selecting communication media for distributed communities. - Elske Heeren; Robert Lewis 002 (J. Comput. Assist. Learn., 1997)

An Activity Theory framework to explore distributed communities. - Robert Lewis 002 (J. Comput. Assist. Learn., 1997)

Learning Communities - Old and New. - Robert Lewis 002 (ICCE, 2002)

Communication technology in the developing nations. - Robert Lewis 002 (J. Comput. Assist. Learn., 2004)

Analysis and modeling of tutor functions. - Sonia Ayachi Ghannouchi; Lilia Cheniti-Belcadhi; Robert Lewis 002 (Comput. Appl. Eng. Educ., 2013)