Movie (4'47"): Skiing in Arolla, Switzerland (March 2010) with my daughter Fritzi (1984)
Skating in Harderwijk and Vinkeveen (6, 11 January 2009)
At home in Amsterdam (March 2007 and January 2008), and
MAX (Giovannetti, 1954)
Arolla, Switzerland
Skiing in Arolla, Switzerland (March 2007) with my daughters
Fritzi (1984, on photo)
and Nora
(1988, who takes the picture) at the terrace at 3000
m., and in 2005, 1999 (neighbourhood), and (2 times) in 2008
Lecture Concurrency Theory, UvA, Amsterdam 2007
