@Article{	  GulW2017,
  author	= "Funda Gul and Armin Wei{\ss}",
  title		= "On the dimension of matrix embeddings of torsion-free
		  nilpotent groups",
  journal	= "J. Algebra",
  volume	= "477",
  year		= "2017",
  pages		= "516--539",
  issn		= "0021-8693",
  doi		= "10.1016/j.jalgebra.2017.01.027"
}