Canada and U.S.A. 1967
Serbelloni 1967 and 1969
Serbelloni 1967
Venice 1967
New Guinea and Madang 1967
Trobriand Islands 1966
Crete 1966
Greece 1966
Down House, England 1966
Flinders 1965
Cairns 1965
New Guinea 1965
New Guinea 1964
New York 1964
Copenhagen 1964(?)
Basle, Slapy and Honolulu 1964
Portland, Oregon 1964
Southern Germany and Erling-Andechs 1963
Seewiesen and Erling-Andechs 1963
Geneva, Basel, Rome and Munich 1963
Lindau, Mainau and Bregenz 1963
Freiburg 1963
