Boichenko, Oleg. “Innovations: Experience of Ukrainian Company”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism0, no. 7 (April 17, 2018): 80-86. Accessed May 2, 2024. https://periodicals.karazin.ua/irtb/article/view/10498.