[1]
D. H. Paull, J. Wolfer, J. W. Grebinski, A. Weatherwax, and T. Lectka, “Catalytic, Asymmetric Inverse Electron Demand Hetero Diels-Alder Reactions of o-Benzoquinone Derivatives and Ketene Enolates”, Chimia, vol. 61, no. 5, p. 240, May 2007, doi: 10.2533/chimia.2007.240.