@misc{indiciae160f42521b6e,
  title = {Why Do T Tauri Disks Accrete?},
  author = {Hartmann, Lee and D'Alessio, Paola and Calvet, Nuria and Muzerolle, James},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20070031586},
  note = {Source identifier: 20070031586}
}