Alain Pitiot Hervé Delingette Arthur W. Toga Paul M. Thompson Learning Object Correspondences with the Observed Transport Shape Measure. 25-37 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2732&spage=25 2003 conf/ipmi/2003 IPMI db/conf/ipmi/ipmi2003.html#PitiotDTT03