Gusakov, Alexander, Olga Ilina, Ekaterina Kulikova, and Olga Melikhova. “Topical Issues of Systems Engineering”. Journal of Civil Engineering and Management 9, no. 3 (September 30, 2003): 214-217. Accessed July 6, 2024. https://jau.vgtu.lt/index.php/JCEM/article/view/9055.