@misc{1169376,
  author = {V B Likskii and George E Forsythe},
  title = {The proper values of the sum and product of symmetric matrices:},
  year = {1953},
  month = {1953-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.RPT.2248},
  language = {en},
}