Pelt J., Astronomical Time Series Analysis, Oulu University,
23 October – 18 November, 2003, pp. 1-163
Pelt J.,Irregularly spaced data analysis in astronomy and related sciences. Lecture Notes and Illustrationhttp://www.aai.ee/~pelt/main2008.pdfs, Tartu Observatory, University of Helsinki, Tartu University, 2008, pp. 1-873