Magnus R, Maran T, Kull K. Jakob von Uexküll Centre, since 1993. SSS [Internet]. 2004 Dec. 31 [cited 2024 Apr. 26];32(1/2):375-8. Available from: https://ojs.utlib.ee/index.php/sss/article/view/SSS.2004.32.1-2.18