Kuzhivelil Joseph A, Sankaran J. Third order nonlinear optical constants of L-alaninium oxalate. Photonics Lett. Pol. [Internet]. 2015 Sep. 30 [cited 2024 May 18];7(3):pp. 81-83. Available from: http://www.photonics.pl/PLP/index.php/letters/article/view/7-29