Means and averaging in the group of rotations. Moakher, M. SIAM J. Matrix Anal. Appl., 24(1):1–16, 2002.
bibtex   
@Article{SCC.Moakher2002,
  author    = {Moakher, Maher},
  title     = {Means and averaging in the group of rotations},
  journal   = {SIAM J. Matrix Anal. Appl.},
  year      = {2002},
  volume    = {24},
  number    = {1},
  pages     = {1--16},
  owner     = {Rushikesh},
  timestamp = {2010.05.07},
}

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