Wąsik, M. (2019) “The Living Nature with a Bridle an Essay on Monkeys in the Circuses in Vienna in the 19th Century”, in Leyko, M. and Snelewska-Stempień, Z. (eds.) Not just the Clown and the Tiger. Sketches about Circus Arts. Poland: Lodz University Press, pp. 97–112. doi:10.18778/8142-227-7.06.