Winnik*, M. A.; Trueman, R. E.; Jackowski, G.; Saunders, D. S.; Whittington*, S. G. Computer Simulation Of Intramolecular Hydrogen Abstraction In The Photochemistry Of P-Benzophenonecarboxylate Esters. J. Amer. Chem. Soc. 1974, 96, 4843?4848.