@Article{Ritter_etal2009,
author="Ritter, F.
and  \textbf{C. Hansen}
and Wilkens, K.
and K{\"o}hn, A.
and Peitgen, HO",
title="{User Interfaces for Direct Interaction with 3D Planning Data in the Operation Room}",
journal = {i-com - Journal of Interactive Media},
year="2009",
volume="8",
number="1",
pages="24--31",
keywords={Journal}
}