@misc{indiciae5e2d1b8e5089,
  title = {String propagator: A loop space representation.},
  author = {S Ansoldi and A Aurilia and E Spallucci},
  year = {1996},
  doi = {10.1103/physrevd.53.870},
  url = {https://pubmed.ncbi.nlm.nih.gov/10020070/},
  note = {Source identifier: 10020070}
}