Reichl, Karl (2016) [1987]. "Geduldstein (AaTh 894)" [Ghoulish Schoolmaster and the Stone of Pity (ATU 894)]. In Brednich, Rolf Wilhelm; Alzheimer, Heidrun; Bausinger, Hermann; Brückner, Wolfgang; Drascek, Daniel; Gerndt, Helge; Köhler-Zülch, Ines; Roth, Klaus; Uther, Hans-Jörg (eds.). Enzyklopädie des Märchens Online (in German). Berlin: De Gruyter. p. 823. doi:10.1515/emo.5.122.
jhu.edu
muse.jhu.edu
Canepa, Nancy (2007). Giambattista Basile's The Tale of Tales, or Entertainment for Little Ones. Wayne State University Press. p. 195 (footnote). ISBN978-0-8143-3738-7. Project MUSEbook 14344.
surlalunefairytales.com
Giovanni Batiste Basile Il Pentamerone, or The Tale of Tales, "The Young Slave", Sir Richard Burton, translator. London: Henry and Company, 1893.