Montejo-Garai, J. R., J. A. Ruiz-Cruz, C. A. Leal-Sevillano, and J. M. Rebollar,  "Modeling of Dual-Polarization Diplexers Based on Enhanced Multiport Turnstile Junctions",  IET Microwaves, Antennas and Propagation, vol. 7, no. 7, pp. 485-492, May, 2013.

Montejo-Garai, J. R., J. A. Ruiz-Cruz, and J. M. Rebollar,  "Synthesis and design of a manifold triplexer implemented in a three layer rectangular H-plane waveguide",  Proc. 35th European Microwave Conference, vol. 1, pp. 1-4, Oct., 2005.