@misc{indiciaebbcffe9865fa,
  title = {Endocrine correlates of reproduction in the wolf. I. Serum progesterone, estradiol and LH during the estrous cycle},
  author = {U.S. Seal and E.D. Plotka and J.M. Packard and L.D. Mech},
  year = {1979},
  doi = {10.1095/biolreprod21.5.1057},
  url = {https://pubs.usgs.gov/publication/5222119},
  note = {Source identifier: 5222119}
}