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3. E. Juaristi and G. Cuevas, The Anomeric Effect (CRC, Boca Raton, FL, 1995), p. 26.
4. G. R. J. Thacher, The Anomeric Effect and Associated Steroelectronic Effects, Vol. 539 of ACS Symp. Ser. (Am. Chem. Soc, Washington, DC, 1993), p. 12.
5. J. Kirby, The Anomeric Effect and Related Stereoelectronic Effects at Oxygen (Springer, New York, 1983), pp. 334–339.