@article{92496,
  author = {John Bollinger and D Heinzen and F Moore and Wayne Itano and David Wineland},
  title = {Low Order Modes of an Ion Cloud in a Penning Trap},
  year = {1992},
  number = {46},
  month = {1992-10-01},
  publisher = {Physica Scripta},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=104861},
  language = {en},
}