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Vineyard, B. D.; Knowles, W. S.; Sabacky, M. J.; Bachman, G. L.; Weinkauff, D. J. (1977). "Asymmetric hydrogenation. Rhodium chiral bisphosphine catalyst". Journal of the American Chemical Society. 99 (18): 5946–5952. Bibcode:1977JAChS..99.5946V. doi:10.1021/ja00460a018.