@article{5981,
  author = {Ellen Zweibel},
  title = {Slow and steady spirals},
  year = {1996},
  journal = {Nature},
  volume = {383},
  pages = {758-759},
  month = {Jul-10-1998},
  issn = {0028-0836},
  doi = {10.1038/383758a0},
}