Technology selection for small-group collaborative distance learning. - Elske Heeren (CSCL, 1995)

Investigating colaborative distance learning in small groups which use audio conferencing and a shared workplace. - Elske Heeren (Innovative Adult Learning with Innovative Technologies, 1995)

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