V. Pervenetskaya , Marina, Lydmila V. Fomenko, and Maksim V. Koshkarev. “Sources of Arterial Vascularization of the Polar Owl’s Kidneys”. KnE Life Sciences 6, no. 3 (April 5, 2021): 558–565. Accessed September 16, 2021. https://knepublishing.com/index.php/KnE-Life/article/view/8991.