Armisén, A. 1995. Notes on the genesis, reception and intertextual relationships of ignorance in Vallejo. "Los Heraldos Negros" and its influence on Jaime Gil de Biedma’s "Los aparecidos". Tropelías: Review of Literary Theory and Comparative Literature. 5-6 (Dec. 1995), 29–66. DOI:https://doi.org/10.26754/ojs_tropelias/tropelias.19955-65547.