The Symmetric Procrustes Problem. Higham, N. J. BIT, 28:133-143, 1988.
doi  bibtex   
@article{high88s,
  author =        {Nicholas J. Higham},
  journal =       {BIT},
  pages =         {133-143},
  title =         {The Symmetric {Procrustes} Problem},
  volume =        {28},
  year =          {1988},
  doi =           {10.1007/BF01934701},
}

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