Brookes, Pertram C. “POPPER’S THREE WORLDS AND THEIR RELEVANCE TO INFORMATION SCIENCE”. Proceedings of the Annual Conference of CAIS Actes Du congrès Annuel De l’ACSI, July 2022, https://journals.library.ualberta.ca/ojs.cais-acsi.ca/index.php/cais-asci/article/view/1771.