Jun Li’s work on rotational resonance width experiments is published in JMR:
Li, J., & van der Wel, P.C.A. Spinning-rate encoded chemical shift correlations from rotational resonance solid-state NMR experiments. Journal of Magnetic Resonance. 2013;230:117-124. http://dx.doi.org/10.1016/j.jmr.2013.02.004