1. Baytex Energy Ltd. (2005). Vapor extraction. Field Project Technical Report, Saskatchewan Ministry of Energy and Resources, Regina, Saskatchewan.
2. Butler, R. M., & Jiang, Q. (2000). Improved recovery of heavy oil by VAPEX with widely spaced horizontal injectors and producers. Journal of Canadian Petroleum Technology, 39(1), 48–56.
3. Butler, R. M., & Mokrys, I. (1998). Closed-loop extraction method for the recovery of heavy oils and bitumens underlain by aquifers: The VAPEX process. Journal of Petroleum Technology, 37(4), 41–50.
4. Cuthiell, D., McCarthy, C., Frauenfeld, T., Cameron, S., & Kissel, G. (2003). Investigation of the VAPEX process using CT scanning and numerical simulation. Journal of Canadian Petroleum Technology, 42(2), 41–49.
5. Cuthiell, D., McCarthy, C., Kissel, G., & Cameron, S. (2006). The role of capillarity in VAPEX. Presented at the Petroleum Society’s 7th Canadian international petroleum conference, Calgary, Alberta, Canada, June 13–15, 2006.