Thompson, Jason. «Free Online Games, Open Source Software and Library Technical Roles, What Do They Have in Common?». Profesional de la información 17, no. 6 (julio 17, 2016): 679–680. Accedido agosto 12, 2022. https://revista.profesionaldelainformacion.com/index.php/EPI/article/view/epi.2008.nov.13.