@article{PhysRevA.100.011801,
  title = {Dual-frequency spin-resonance spectroscopy of diamond nitrogen-vacancy centers in zero magnetic field},
  author = {Dmitriev, A. K. and Chen, H. Y. and Fuchs, G. D. and Vershovskii, A. K.},
  journal = {Phys. Rev. A},
  volume = {100},
  issue = {1},
  pages = {011801},
  numpages = {5},
  year = {2019},
  month = {Jul},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevA.100.011801},
  url = {https://link.aps.org/doi/10.1103/PhysRevA.100.011801}
}