@misc{indiciaed6331e99e962,
  title = {Is the polar bear ( Ursus maritimus ) a hibernator? Continued studies on opioids and hibernation},
  author = {David S. Bruce and Nancy K. Darling and Katheleen J. Seeland and Peter R. Oeltgen and Sita P. Nilekani and Steven C. Amstrup},
  year = {1990},
  doi = {10.1016/0091-3057(90)90311-5},
  url = {https://pubs.usgs.gov/publication/70184660},
  note = {Source identifier: 70184660}
}