Pezzagna, S., Wildanger, D., Mazarov, P., Wieck, A. D., Sarov, Y., Rangelow, I., et al. (2010). Nanoscale engineering and optical addressing of single spins in diamond. Small, 6(19), 2117-2121. Retrieved from http://onlinelibrary.wiley.com/doi/10.1002/smll.201000902/pdf.