G. Bernardinelli, A. Cunningham, C. Dupré, E. P. Kündig, D. Stussi, and J. Weber, “Experimental and Theoretical Investigation of Asymmetric Induction in the Synthesis of Disubstituted Cyclohexadienes via Chiral Benzene Chromium Complexes”, Chimia, vol. 46, no. 4, p. 126, Apr. 1992.