@incollection{55719,
author = {Ingemar Bengtsson ; Stephan Weis ; Karol Zyczkowski},
title = {{Geometry of the set of mixed quantum states : an apophatic approach}},
series = {Trends in mathematics},
doi = {10.1007/978-3-0348-0448-6\_15},
booktitle = {Geometric methods in physics : XXX Workshop, Bialowieza, Poland, June 26 to July 2,
2011},
editor = {Piotr Kielanowski},
publisher = {Springer},
address = {Basel},
year = {2013},
pages = {175--197},isbn={978-3-0348-0447-9},
institution = {{Max Planck Institute for Mathematics in the Sciences}},
MISPreprint = {{MIS-Preprint 83/2011}},
url = {http://www.mis.mpg.de/de/publications/preprints/2011/prepr2011-83.html},
}