For citations:
Poletaykin A.N., Shevtsova Yu.V., Podkolzin V.V., Strukova E.G. MATHEMATICAL MODEL OF QUALITY ASSESSMENT OF CONTACT WORK IN E-LEARNING BASED ON WEBINARS. Informatics and education. 2019;(7):42-53. (In Russ.) https://doi.org/10.32517/0234-0453-2019-34-7-42-53