S.  Sun, Zhang, J. Linda, Fischer, K. A., Burek, M. J., Dory, C., Lagoudakis, K. G., Tzeng, Y. - K., Radulaski, M., Kelaita, Y., Safavi-Naeini, A., Shen, Z. - X., Melosh, N. A., Chu, S., ?ar, M., and ?kovi?, J., ?Cavity-Enhanced Raman Emission from a Single Color Center in a Solid?, Physical Review Letters, vol. 121, no. 8, 2018.