Katalnikova, Sabina, and Leonids Novickis. “VARIOUS ASPECTS OF INTELLIGENT COLLABORATIVE EDUCATIONAL SYSTEMS”. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 2 (June 15, 2017): 67–76. Accessed May 1, 2024. https://journals.ru.lv/index.php/ETR/article/view/2549.