Guicher, Nathalie, Helen Stoeckli-Evans, and Klaus Bernauer. 2003. “Non-Linear Effects in Asymmetric Reactions: Negative and Positive Stereoselectivity in the Formation of Homoleptic 1:2 Metal to Ligand Complexes of Chiral 1,9-Disubstituted Semicorrin Ligands”. CHIMIA 57 (10):581. https://doi.org/10.2533/000942903777678849.