1.
Tønnessen M. Abstraction, cruelty and other aspects of animal play (exemplified by the playfulness of Muki and Maluca). SSS [Internet]. 2009 Dec. 1 [cited 2024 Nov. 27];37(3/4):558-79. Available from: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2009.37.3-4.10