1.
Kasmel T, Kasmel J. On research of Estonian school students’ physical development in diploma theses of the Department of Zoology at Tartu State University, 1958–1970. PoA [Internet]. 22Jun.2016 [cited 25Apr.2019];25(1):9-0. Available from: http://ojs.utlib.ee/index.php/PoA/article/view/poa.2016.25.1.01