@article{4410,
  author = {Alan Stern and J. Shull and J. Brandt},
  title = {Evolution and detectability of comet clouds during post-main-sequence stellar evolution},
  year = {1990},
  journal = {Nature},
  volume = {345},
  pages = {305-308},
  month = {Dec-05-1991},
  issn = {0028-0836},
  url = {http://www.nature.com/doifinder/10.1038/345305a0},
  doi = {10.1038/345305a0},
}