Recording: Conference held at the XXI Festival Celestina (23/08/2019) The conference held at this year’s XXI Festival Celestina was streamed live and can be watched in Facebook. As usual, it is also available as podcast at the Ivoox profile of Radio Puebla: https://www.ivoox.com/todo-sobre-areusa-23-08-19_md_40345696_wp_1.mp3