Jin Ok Kim Chang Han Oh Chin Hyun Chung Jun Hwang Woongjae Lee On Natural Motion Editing by a Geometric Mean Filter. 411-418 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2668&spage=411 2003 conf/iccsa/2003-2 ICCSA (2) db/conf/iccsa/iccsa2003-2.html#KimOCHL03