@article{9129,
  author = {M. Zeilik and Roy Garstang},
  title = {Astronony-The evolving universe},
  year = {1989},
  journal = {The Physics Teacher},
  volume = {27},
  pages = {220},
  month = {Jan-01-1989},
  issn = {0031921X},
  doi = {10.1119/1.2342727},
}