@misc{indiciae8254c137496f,
  title = {Phase transition in the 2D XY model.},
  author = {R Gupta and J DeLapp and GG Batrouni and GC Fox and CF Baillie and J Apostolakis},
  year = {1988},
  doi = {10.1103/physrevlett.61.1996},
  url = {https://pubmed.ncbi.nlm.nih.gov/10038952/},
  note = {Source identifier: 10038952}
}