Video Lecture: Part 1
Watch the first part of the video lecture (119 MB, 30 minutes) http://www.tlu.ee/opmat/ri/rit6006/background/1_1video/. Download lecture notes http://www.tlu.ee/opmat/ri/rit6006/background/1_1slaid.pdf
Tõnis Saarts, Tallinn University 2009