Lavrov E, Barchenko N, Pasko N, Borozenec I. Development of models for the formalized description of modular e-learning systems for the problems on providing ergonomic quality of human-computer interaction. EEJET [Internet]. 2017Apr.26 [cited 2024May7];2(2 (86):4-13. Available from: https://journals.uran.ua/eejet/article/view/97718