de la Mare, P. B. D. (1984). “Hyperconjugation: intermediates and transition states in replacement and elimination”. Pure and Applied Chemistry56 (12): 1755–1766. doi:10.1351/pac198456121755.
Baker, John W.; Nathan, W. S. (1935). “118. The mechanism of aromatic side-chain reactions with special reference to the polar effects of substituents. Part III. The effect of unipolar substituents on the critical energy and probability factors in the interaction of benzyl bromide with pyridine and α-picoline in various solvents”. J. Chem. Soc.0 (0): 519–527. doi:10.1039/JR9350000519.
Baker, John W.; Nathan, Wilfred S. (1935). “428. The mechanism of aromatic side-chain reactions with special reference to the polar effects of substituents. Part IV. The mechanism of quaternary salt formation”. Journal of the Chemical Society (Resumed): 1840. doi:10.1039/jr9350001840.
Baker, John W.; Nathan, Wilfred S. (1935). “429. The mechanism of aromatic side-chain reactions with special reference to the polar effects of substituents. Part V. The polar effects of alkyl groups”. Journal of the Chemical Society (Resumed): 1844. doi:10.1039/jr9350001844.
