@misc{indiciae3ca8a485ead3,
  title = {Compact planetary nebulae: improved IR diagnostic criteria based on classification tree modelling},
  author = {Stavros Akras and Lizette Guzman-Ramirez and Denise R Gonçalves},
  year = {2019},
  url = {https://ntrs.nasa.gov/citations/15717194014515},
  note = {Source identifier: 15717194014515}
}