Mokin, V. B., I. V. Varchuk, and Y. M. Kryzhanovskyi. “INFORMATION TECHNOLOGY OF CONSTRUCTING A TOPOLOGICALLY OBSERVABLE MULTIPLY CONNECTED ANALYTIC GEOINFORMATION SYSTEM WITH VARIABLE STRUCTURE”. Visnyk of Vinnytsia Politechnical Institute, no. 5, Dec. 2016, pp. 24-31, https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/1964.