Utamuradova, S.B., Azamatov, Z.T., Yuldoshev, M.A., Bazarbayev, N.N. and Bakhromov, A.B. 2023. Investigations of Nonlinear Optical Properties of Lithium Niobate Crystals. East European Journal of Physics. 4 (Dec. 2023), 147-152. DOI:https://doi.org/10.26565/2312-4334-2023-4-15.