Горбійчук, М. І., and М. О. Слабінога. “USING RECTANGULAR ORTHOGONAL FUNCTIONS FOR THE TECHNICAL EVALUATION OF INDUSTRIAL FACILITIES”. METHODS AND DEVICES OF QUALITY CONTROL, no. 1(30) (May 31, 2013): 92–97. Accessed May 8, 2024. https://mpky.nung.edu.ua/index.php/mpky/article/view/163.