@article{metzner1989,
  author = {Metzner, W. and Vollhardt, D.},
  title = {{Correlated Lattice Fermions in d=∞ Dimensions}},
  journal = {Physical Review Letters},
  volume = {62},
  number = {3},
  pages = {324--327},
  year = {1989},
  doi = {10.1103/PhysRevLett.62.324}
}