Negro, Pablo, and Claudia Pons. “Artificial Intelligence Techniques Based on the Integration of Symbolic Logic and Deep Neural Networks: A Systematic Review of the Literature”. Inteligencia Artificial 25, no. 69 (March 11, 2022): 13–41. Accessed June 28, 2022. https://journal.iberamia.org/index.php/intartif/article/view/702.