Sven Hentschel Frithjof Kruggel Determination of the Intracranial Volume: A Registration Approach. 253-260 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3150&spage=253 2004 conf/miar/2004 MIAR db/conf/miar/miar2004.html#HentschelK04