@InCollection{	  BuntrockDHM91stacs,
  title		= "Structure and importance of logspace-mod-classes",
  year		= "1991",
  volume	= "480",
  pages		= "360--371",
  publisher	= "Springer",
  address	= "Berlin",
  series	= "Lecture Notes in Computer Science",
  booktitle	= "S{TACS} 91 ({H}amburg, 1991)",
  doi		= "10.1007/BFb0020812",
  author	= "Buntrock, Gerhard and Damm, Carsten and Hertrampf, Ulrich
		  and Meinel, Christoph"
}