Zhivotkov А. В., Golubchikov В. Б., and Efimova М. М. “Determination of Optical Transparency of Aerosol Nanosystems”. Intellekt. Sist. Proizv., no. 1, Mar. 2013, pp. 119-22, https://izdat.istu.ru/index.php/ISM/article/view/1743.