@misc{indiciae58f0cb72c861,
  title = {On density and extinction in continuous population models.},
  author = {T G Hallam and M Zhien},
  year = {1987},
  doi = {10.1007/bf00276389},
  url = {https://pubmed.ncbi.nlm.nih.gov/3611981/},
  note = {Source identifier: 3611981}
}