ФИО:
Kustov Denis Valer’evich
About author:
The Federal State Budgetary Educational Institution of the Higher Education the Vereshchagin State Dairy Farming Academy of Vologda
e-mail:
denis.custov606@yandex.ru
The Federal State Budgetary Educational Institution of the Higher Education the Vereshchagin State Dairy Farming Academy of Vologda