@misc{indiciae457ee95381c5,
  title = {Sampling considerations involved with monitoring the nutritional status of gray wolves Canis lupus via biochemical analysis of snow-urine},
  author = {G. D. DelGiudice and J. Stone and L.D. Mech and U.S. Seal},
  year = {1992},
  url = {https://pubs.usgs.gov/publication/5210624},
  note = {Source identifier: 5210624}
}