Univer, Toivo. “Aianduse, Eriti Pomoloogia Eestikeelse Oskussõnavara lätted [The Sources of Estonian Terminology in Horticulture, Especially in Pomology]”. Philologia Estonica Tallinnensis, vol. 13, Nov. 2011, pp. 12-23, https://publications.tlulib.ee/index.php/philologia/article/view/394.