Aguiar, R., D. Mora, D. Muñoz, S. Serrano, D. Vera, M. Rodríguez, and D. Páez. “Seismic Analysis of Stairs With Three Models Using the Spectral and the Capacity Spectrum Methods, Give Access to a Building With Seismic Isolators”. Revista Ingeniería De Construcción, vol. 32, no. 3, Dec. 2017, pp. 113-30, doi:10.4067/S0718-50732017000300113.