@misc{indiciae2f782cb9c8ad,
  title = {A Model For the Limiting Time in Vortex Ring Formation},
  author = {Shariff, Karim and Gharib, Morteza and Rambod, Edmond and Merriam, Marshal},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/20020049440},
  note = {Source identifier: 20020049440}
}