Yaremchuk, V. F., N. S. Kravchuk, and S. M. Smishnyi. “Mathematical Model of Fibre Optical Converter of Gas Concentration”. Visnyk of Vinnytsia Politechnical Institute, no. 3, Nov. 2010, pp. 15-18, https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/1674.