1.
Tønnessen M. The ontogeny of the embryonic, foetal and infant human umwelt. SSS [Internet]. 2014 Dec. 5 [cited 2024 Nov. 27];42(2/3):281-307. Available from: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2014.42.2-3.06