Tikhonov U, Lakhno V, Skliarenko E, Stepanenko O, Dvirnyi K. Development of ontological approach in e-learning when studying information technologies. EEJET [Internet]. 2016Oct.30 [cited 2024Nov.23];5(2 (83):13-20. Available from: https://journals.uran.ua/eejet/article/view/79230