Nguyễn, P. Q. A., and N. M. Lê. “Propagation of Electromagnetic Waves in Hyperbolic Metamaterials With Epsilon Near-Zero Permittivity”. Hue University Journal of Science: Natural Science, vol. 132, no. 1A, Mar. 2023, pp. 29-39, doi:10.26459/hueunijns.v132i1A.6622.