title: Detection of single oxygen molecules opens up new vistas for the investigation of molecular cooperativity in hemocyanins.
authors: Faculty of Physics, Applied Laser Physics and Laser Spectroscopy, University of Bielefeld, Universitätsstrasse 25, 33615 Bielefeld, Germany. tinnefeld@physik.uni-bielefeld.de
authors: Philip
authors: P
authors: Tinnefeld