2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/151742Josephson plasma frequency is computed within the interlayer tunneling theory and compared against the experimental results in Tl_2Ba_2CuO_y and La_{2-x}Sr_xCuO_4. It is shown that the theoretical estimates are fully consistent with the recent experiments.6 pages, ReVTeXSuperconductivityStrongly Correlated Electronstext