@TechReport{vdH:skewcompl-pre,
  author = 	 {J. van der Hoeven},
  title = 	 {On the complexity of skew arithmetic},
  institution =  {HAL},
  year = 	 {2011},
  note = 	 {\verb|http://hal.archives-ouvertes.fr/hal-00557750/fr/|}
}

@Article{vdH:skewcompl,
  author = 	 {Hoeven, J. van der},
  title = 	 {On the complexity of skew arithmetic},
  year =         {2016},
  journal =      {AAECC},
  volume =       {27},
  number =       {2},
  publisher =    {Springer Berlin Heidelberg},
  pages =        {105--122}
}