International Telecommunication Union ITU-T Special Study Group, Geneva, 17 – 21 November 2003 ITU-T Special Study Group ITU-T Guide for Participants Tatiana.
International Telecommunication Union ITU-T Study Group 19, Geneva, 13 – 17 December 2004 ITU-T Study Group 19 ITU-T Guide for Participants Tatiana Kurakova.
