Sala, Filip A., and Mirosław A. Karpierz. “Numerical Simulation of Beam Propagation in a Layer Filled With Chiral Nematic Liquid Crystals”. Photonics Letters of Poland 1, no. 4 (December 31, 2009): pp. 163–165. Accessed May 6, 2024. https://photonics.pl/PLP/index.php/letters/article/view/1-55.