@misc{indiciae9dbc30cc3d08,
  title = {On Cepheids at maximum and minimum light},
  author = {Simon, Norman R. and Kanbur, Shashi M. and Mihalas, Dimitri},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19930071255},
  note = {Source identifier: 19930071255}
}