Aguilera Chaves, M.G., Arce Aita, G. and Vargas Araya, T. 2018. The use of a Method for Structural Design of Ring-Girders used in Penstocks. Métodos y Materiales. 7, 1 (May 2018), 29–39. DOI:https://doi.org/10.15517/mym.v7i1.30672.