@misc{indiciaee396015d477c,
  title = {Higher spins and open strings: Quartic interactions},
  author = {Polyakov, Dimitri},
  year = {2011},
  doi = {10.1103/physrevd.83.046005},
  url = {https://www.osti.gov/biblio/21505045},
  note = {Source identifier: 21505045}
}