Huang, C.-L., Dehant, V., Liao, X.-H., Van Hoolst, T., & Rochester, M. G. (2011). On the coupling between magnetic field and nutation in a numerical integration approach. Journal of Geophysical Research, 116(B3), B03403. https://doi.org/10.1029/2010JB007713 (Original work published 2011)