@misc{indiciaedfeb832cc1f4,
  title = {On an apparent discrepancy between pulsation and evolution masses for Cepheids.},
  author = {Iben, I., Jr. and Tuggle, R. S.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720040999},
  note = {Source identifier: 19720040999}
}