@InProceedings{	  HertrampfLSVW93sct,
  title		= "On the Power of Polynomial Time Bit-Reductions",
  year		= "1993",
  pages		= "200--207",
  publisher	= "IEEE Comput. Soc. Press",
  address	= "Los Alamitos, CA",
  booktitle	= "Proceedings of the Eighth Annual Structure in Complexity
		  Theory Conference (San Diego, CA, 1993)",
  doi		= "10.1109/SCT.1993.336526",
  author	= "Hertrampf, Ulrich and Lautemann, Clemens and Schwentick,
		  Thomas and Vollmer, Heribert and Wagner, Klaus W."
}