Kalinichenko , S. ., K. . Melentyeva, I. Toryanyk, and T. . Antusheva. “Characterization of Variability of Epidemically Active Strains of Measles Virus Circulating in the North-Eastern Region of Ukraine”. Annals of Mechnikov’s Institute, no. 2, June 2022, pp. 82-87, https://journals.uran.ua/ami/article/view/255994.