Striy L, Orlov V, Zakharchenko L, Golubev A, Bogatyreva L. Enterprises of telecommunications in Ukraine: research of the present state and directions of development. TAPR [Internet]. 2017Jul.25 [cited 2024Aug.17];4(4(36):15-21. Available from: https://journals.uran.ua/tarp/article/view/108664