Roedel, L.R. and Silva, A.C.L.F. da 1998. The medieval Hispanic Church in two stages: the concern for education of clergy and laity. Estudos Ibero-Americanos. 24, 2 (Dec. 1998), 169–203. DOI:https://doi.org/10.15448/1980-864X.1998.2.27259.