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Yoder, C.H.; Sheffy, F.K.; Howell, R.; Hess, R.E.; Pacala, L.; Schaeffer, C.D.; Zuckerman, J.J., Multiple regression analysis of carbon-13 chemical shifts and carbon-13 proton coupling constants in ortho-substituted aromatics, J. Org. Chem., 1976, 41, 1511. [all data]