Dolomatov, Sergey, Vera Kazakova, and Walery Zukow. “Hox Genes in the Coordination of Embryonic Development. Model of Hourglass in the Description of Vertebrate Ontogenesis”. Journal of Education, Health and Sport 11, no. 12 (December 4, 2021): 24–37. Accessed June 29, 2025. https://apcz.umk.pl/JEHS/article/view/36402.