1. Budker, D. and Romalis, M., Nat. Phys., 2007, vol. 3, p. 227.
2. Budker, D. and Kimball, D.F.J., eds., Optical Magnetometry, Cambridge: Cambridge Univ. Press, 2013.
3. Grosz, A., Haji-Sheikh, M.J., and Mukhopadhyay, S.C., High Sensitivity Magnetometers, Springer, 2017.
4. Fu, K.-M.C., Iwata, G.Z., Wickenbrock, A., and Budker, D., arXiv preprint arXiv:2008.00082, 2020.
5. Macaluso, D. and Corbino, O.M., NCim, 1898, vol. 8, p. 257.