Polishchuk, N., P. Savaryn, OleschukТ., and MarchukВ. “Development of Software and Hardware for Creating GSM GPS Tracker”. COMPUTER-INTEGRATED TECHNOLOGIES: EDUCATION, SCIENCE, PRODUCTION, no. 35, Feb. 2020, pp. 60-67, https://cit.lntu.edu.ua/index.php/cit/article/view/70.