In Daejong, Zuid Korea, 2002
Korte cursussen van 4 tot 6 colleges buiten Nederland
Han (Belgie): nationale cursus derde cyclus
Mass loss and stellar winds : 1986
Strassbourg (France): international postdoc school
Radiation driven winds, 1992
Rio de Janeiro (Brazilie): nationale postdoc school
Mass loss and stellar winds, 2000
Universiteit Roma III (Italie)
Mass loss and stellar winds, 2000
Sejong University of Seoul (Korea)
Mass loss and stelllar winds, 2002
Universiteit van Florence (Italie)
Mass loss and stellar evolution, 2003
Santiago (Chili): ESO cursus
Stellar winds, evolution and rotation, 2008
