Принципи на Слушането 1 част – Captured Live on Ustream at http://www.ustream.tv/channel/%D0%9D%D0%BE%D0%B2%D0%BE-%D0%BF%D0%BE%D0%BA%D0%BE%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5-%D0%BD%D0%B0-%D0%B6%D0%B8%D0%B2%D0%BE

Recorded on 4/7/11 – Captured Live on Ustream at http://www.ustream.tv/channel/%D0%9D%D0%BE%D0%B2%D0%BE-%D0%BF%D0%BE%D0%BA%D0%BE%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5-%D0%BD%D0%B0-%D0%B6%D0%B8%D0%B2%D0%BE