G, Saravana Kumar, and Jeyalaxmi M. “Development and Evaluation of an Efficient Second Order Non-Linear Optical Single Crystal – 2-(3-Aminopyridinium-1-Yl)-3-Carboxy-Proponate Monohydrate”. Photonics Letters of Poland 15, no. 3 (September 30, 2023): 48–50. Accessed November 23, 2024. http://photonics.pl/PLP/index.php/letters/article/view/15-17.