Le, Tran Bao Tran, et al. “NONLINEAR CHARACTERISTICS OF SQUARE SOLID-CORE PHOTONIC CRYSTAL FIBERS WITH VARIOUS LATTICE PARAMETERS IN THE CLADDING”. Dalat University Journal of Science, vol. 13, no. 1, Oct. 2022, pp. 3-15, https://doi.org/10.37569/DalatUniversity.13.1.1017(2023).