Yabu, K and Masumoto, S and Kanai, M and Curran, DP and Shibasaki, M (2002) Studies toward practical synthesis of (20S)-camptothecin family through catalytic enantioselective cyanosilylation of ketones: Improved catalyst efficiency by ligand-tuning. Tetrahedron Letters, 43 (16). 2923 - 2926. ISSN 0040-4039