OGRAJENŠEK, Irena, 2007, Improving student in-depth understanding of statistics : the case for offering historical insights in statistical courses. Advances in methodology and statistics [na spletu]. 2007. Vol. 4, no. 2, p. 219–229. [Dostopano 13 maj 2025]. Pridobljeno s: http://mrvar.fdv.uni-lj.si/pub/mz/mz4.1/ograjensek.pdf