1. David Zilberman and participants of the conference Healthy Ecosystems, Healthy People -Linkages between Biodiversity, Ecosystem Health and Human Health;Karl Eduard Kaule;the Workshop Measurement and Valuation of Biodiversity (Schloss Wendgr�ben, 2002) and conferences of the German Ecological Society (Halle, 2003), the European Association of Environmental and Resource Economists,2002
2. From Microphysics to Macrophysics