Khoo, Shaun Yon-Seng. “Article Processing Charge Hyperinflation and Price Insensitivity: An Open Access Sequel to the Serials Crisis”. LIBER Quarterly: The Journal of the Association of European Research Libraries 29, no. 1 (May 9, 2019): 1–18. Accessed April 11, 2026. https://testplatform.openjournals.nl/liberquarterly/article/view/10729.