ΔΗΜΟΣΙΕΥΜΑΤΑ ΓΙΑ ΤΟΝ ΧΡΗΣΤΟ Α ΣΙΩΚΟ

http://news.google.com/newspapers?nid=1946&dat=19660207&id=oZouAAAAIBAJ&sjid=np8FAAAAIBAJ&pg=6904,1543197

http://www.aes.org/aeshc/docs/aeshist/standards.hist/digital.standards/jaes30-6.pdf

http://www.spectralumni.ca/well_done.htm

http://journal.smpte.org/content/79/2/local/advertising.pdf