Kulyk, Volodymyr, and Sviatoslav Vishnevskiy. “COMBINED MODELS OF ELECTRIC SYSTEMS NORMAL MODES WITH THE ALLOWANCE FOR PECULIARAIES OF LONG TRANSMISSION LINES”. Scientific Works of Vinnytsia National Technical University, no. 1 (November 28, 2015). Accessed April 3, 2025. https://works.vntu.edu.ua/index.php/works/article/view/326.