Paull, Daniel H., Jamison Wolfer, James W. Grebinski, Anthony Weatherwax, and Thomas Lectka. “Catalytic, Asymmetric Inverse Electron Demand Hetero Diels-Alder Reactions of O-Benzoquinone Derivatives and Ketene Enolates”. CHIMIA 61, no. 5 (May 30, 2007): 240. Accessed November 22, 2024. https://www.chimia.ch/chimia/article/view/2007_240.