Morán-López, A.., J.A.. Ruiz-Cruz, J. Córcoles, J.R.. Montejo-Garai, and J.M.. Rebollar,  "Analytical expressions of the Q-factor for the complete resonant mode spectrum of the equilateral triangular waveguide cavity",  Electronics Letters, vol. 55, no. 17, pp. 944-947, 2019.