@article{6003,
  author = {Roy Garstang},
  title = {Sunrise and sunset},
  year = {1996},
  journal = {The Physics Teacher},
  volume = {34},
  pages = {260},
  month = {Jan-01-1996},
  issn = {0031921X},
  doi = {10.1119/1.2344429},
}