Lesiak, Piotr, and Michał Wójcik. “Nonlinear Optical Characterization of the Gold Nanoparticles Coated by the Thiols”. Photonics Letters of Poland 3, no. 3 (September 29, 2011): pp. 113–115. Accessed February 23, 2025. http://m.photonics.pl/PLP/index.php/letters/article/view/3-40.