8. Ilya Nikolayevich Tsvetkov, Stanislav Vyacheslavovich Dikarev, Nikolay Pavlovich Korablyov, Pavel Nikolaevich Korablev Rol polovogo dimorfizma v izmenchivosti skeleta konechnostey amerikanskoi norki (Neovison vison) [Role of Sexual Dimorphism in the Variability of the Skeleton of American Mink Limbs] //Izvestiya Velikolukskoy gosudarstvennoy sel'skokhozyaystvennoy akademii [Bulletin of Velikolukskoy State Agricultural Academy]. 2017. No.5. P. 44-48. [In Russian]
9. Nekrasova Galina Nikolaevna, Elsukova Anna Vasilyevna Sovershenstvovanie sposobov obrabotki mekha [Improvement of Methods for Treating Fur] // Kontsept [Concept] 2018. No. S33. URL: https://cyberleninka.ru/article/n/sovershenstvovanie-sposobov-obrabotki-meha-1 (accessed: 18.05.2019). [In Russian]
10. Mekhovoe delo [Furriery] [Electronic resource] /Kopenhagen Fur/ URL: http://infofur.ru/kopenhagen-fur.html. (accessed: 18.05.2019). [In Russian]