@TechReport{vdH:sparsered-pre,
  author = 	 {Hoeven, J. van der},
  title = 	 {On the complexity of polynomial reduction},
  institution =  {HAL},
  year = 	 {2012},
  note = 	 {\verb|http://hal.archives-ouvertes.fr/hal-00658704|}
}

@InProceedings{vdH:sparsered,
  author = 	 {Hoeven, J. van der},
  title = 	 {On the complexity of polynomial reduction},
  booktitle =    {Proc. Applications of Computer Algebra 2015},
  year =         {2015},
  editor =       {Kotsireas, I. and Martínez-Moro, E.},
  series =       {Springer Proceedings in Mathematics and Statistics},
  volume =       {198},
  pages =        {447--458},
  publisher =    {Springer},
  address =      {Cham}
}