Antipov, Nicholas V., V. A. Golovko, and A. F. Sinev. 2002. “THE MORPHOLOGICAL CHARACTERISTICS OF THE SINOAURICULAR AND AURICULO-VENTRICULAR NODES IN MOOSE, CATTLE, PIG, AND HUMAN HEARTS”. Alces, January, 7-10. https://alcesjournal.org/index.php/alces/article/view/1817.