@article{zhao2007,
  title={The M06 suite of density functionals for main group thermochemistry, thermochemical kinetics, noncovalent interactions, excited states, and transition elements: two new functionals and systematic testing of four M06-class functionals and 12 other functionals},
  author={Yan Zhao and Donald G. Truhlar},
  year={2007},
  journal={Theoretical Chemistry Accounts},
  doi={10.1007/s00214-007-0310-x},
  url={https://doi.org/10.1007/s00214-007-0310-x}
}