Pirson, André (1910-2004) (2)
International Botanical Congress (11. : 1969 : Seattle, Wash.) (1969-)(1)
National Academy of Sciences (Washington, DC) (1863-)(1)
Seilacher, Adolf (1925-2014)(1)
United States / Consulate General (Hamburg)(1)
Universität (Göttingen) / Kurator(1)