@misc{indiciae2c2349a8fabf,
  title = {Quantum corrections to the spin-correlation function and the spin-stiffness constant in a two-dimensional Heisenberg antiferromagnet at zero temperature.},
  author = {Ji Igarashi and A Watabe},
  year = {1991},
  doi = {10.1103/physrevb.44.5057},
  url = {https://pubmed.ncbi.nlm.nih.gov/9998313/},
  note = {Source identifier: 9998313}
}