O. M. Farias Montemayor, A. Luévanos Rojas, S. López Chavarría, and M. Medina Elizondo, “An optimized model for rectangular pile caps supported on a group of piles: Part 2) Optimal design”, Acta Universitaria, vol. 30, pp. 1–21, Jun. 2020, doi: 10.15174/au.2020.2466.