Katlishin, Oleg Ilyasovich. «Evaluation of Competitiveness of Top-Grades of Ultrapasterized Milk in the Conditions of Covid-19». Revista Amazonia Investiga 10, no. 39 (mayo 5, 2021): 16–27. Accedido febrero 3, 2026. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/1569.