Valeri Korjik Guillermo Morales-Luna Vladimir B. Balakirsky Privacy Amplification Theorem for Noisy Main Channel. 18-26 2001 conf/isw/2001 ISC http://link.springer.de/link/service/series/0558/bibs/2200/22000018.htm db/conf/isw/isc2001.html#KorjikMB01