@misc{indiciae59b058dd6615,
  title = {Analysis techniques for multivariate root loci},
  author = {Thompson, P. M. and Stein, G. and Laub, A. J.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800007593},
  note = {Source identifier: 19800007593}
}