Gagan Aggarwal Nina Mishra Benny Pinkas Secure Computation of the k th-Ranked Element. 40-55 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3027&spage=40 2004 conf/eurocrypt/2004 EUROCRYPT db/conf/eurocrypt/eurocrypt2004.html#AggarwalMP04