1. Some effects of having I > 1/2 and eQ ? o are discussed in : Nuclear Magnetic Resonance Spectroscopy. McGraw-Hill, New York 1959, Chapter 5.
2. Cf. in: NMR and EPR Spectroscopy. Pergamon Press, New York 1960, Chapter 8. This book contains much valuable practical information about NMR spectroscopy.
3. An excellent summary of chemical shifts and a large number of illustrative proton spectra are contained in: High Resolution NMR Spectra Catalog. Varian Associates, Palo Alto, Calif., 1962.
4. Nuclear Resonance Spectra of Hydrocarbons: The Free Electron Model