@article{8956,
  author = {Alan Stern and J. Shull},
  title = {The influence of supernovae and passing stars on comets in the Oort cloud},
  year = {1988},
  journal = {Nature},
  volume = {332},
  pages = {407-411},
  month = {Jul-03-1990},
  issn = {0028-0836},
  url = {http://www.nature.com/doifinder/10.1038/332407a0},
  doi = {10.1038/332407a0},
}