@inbook {486, title = {New Angles in Motional Averaging}, booktitle = {Pulsed magnetic resonance: NMR, ESR and optics: A recognition of E.L. Hahn}, year = {1992}, pages = {80 - 94}, publisher = {Claredon Press}, organization = {Claredon Press}, chapter = {3}, address = {Oxford}, author = {Samoson, A. and Sun, B.Q. and Pines, A.}, editor = {Bagguley, D.M.S.} }