Navarro Flores, Cristina, and William Carlos Echegaray Castillo. “V-Cycle AND F-Cycle Multimesh Methods for the Biharmonic Problem Using the Hsieh-Clough-Tocher Element”. Journal of the Science Faculty @ UNI, vol. 16, no. 1, June 2021, pp. 52-71, https://revistas.uni.edu.pe/index.php/revciuni/article/view/945.