@article{4561,
  author = {C. Speake and T. Niebauer and M. McHugh and P. Keyser and James Faller and J. Cruz and J. Harrison and J. Mäkinen and R. Beruff},
  title = {Test of the inverse-square law of gravitation using the 300-m tower at Erie, Colorado},
  year = {1990},
  journal = {Physical Review Letters},
  volume = {65},
  pages = {1967-1971},
  month = {Jan-10-1990},
  issn = {0031-9007},
  url = {http://link.aps.org/doi/10.1103/PhysRevLett.65.1967},
  doi = {10.1103/PhysRevLett.65.1967},
}