@misc{indiciae007fe60a0899,
  title = {The binary Cepheid BP Cir - A test of evolutionary tracks},
  author = {Evans, Nancy R. and Ferro, A. A. and Udalska, Joanna},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920053202},
  note = {Source identifier: 19920053202}
}