@article{53231,
  author = {Andrew Rukhin},
  title = {Identities for Negative Moments of Quadratic Forms in Normal Variables},
  year = {2009},
  number = {79},
  month = {2009-04-15},
  publisher = {Statistics and Probability Letters},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=152108},
  language = {en},
}