1981
Meeting of the ICME "Working Group on the Return and/or Restitution of Cultural Property", Copenhagen, Denmark

1980
"The World's Heritage: The Museum's Responsibility", Mexico City, Mexico

> ICME Program 27th oct - 4th nov

1979
"Vision and visualilsation - the future of the ethnographic museum", symposium at Tropenmuseum, Amsterdam. "The development of ethnography in the regional museums of Southeast Asia", workshop organised by the Asian Sub-Committe of ICME, Bangkok, Thailand

1978
"Visualisation of theoretical concepts in anthropology", New Delhi, India. 2 meetings of the "working group on "Restitution of cultural properties to the people and lands of origin", Copenhagen, Denmark

1977
"Museums and Cultural Exchanges", ICOM General Conference, Leningrad and Moscow, USSR

1976