Asymmetric Reactions Catalyzed by Chiral Metal Complexes. LII. The origin of the enantioselection in the ruthenium(II)-catalyzed asymmetric hydrogenation of .ALPHA.,.BETA.-unsaturated carboxylic acid.Kiyoshi YOSHIKAWA, Kazuo Achiwa, M. MURATA et al.|Chemical and Pharmaceutical Bulletin|1992Cited by 9