@misc{buchert2005cosmic,
  title={A cosmic equation of state for the inhomogeneous Universe: can a global far-from-equilibrium state explain Dark Energy?},
  author={Thomas Buchert},
  year={2005},
  eprint={gr-qc/0507028},
  archivePrefix={arXiv},
  primaryClass={gr-qc},
  doi={10.1088/0264-9381/22/19/L01},
  url={https://arxiv.org/abs/gr-qc/0507028}
}