Radzewicz, Czesław, and Ewa Weinert-Rączka. “4th Polish Optical Conference (PKO 2015)”. Photonics Letters of Poland 7, no. 3 (September 30, 2015): pp. 59. Accessed July 12, 2024. https://photonics.pl/PLP/index.php/letters/article/view/7-21.