@proceedings{DBLP:conf/stacs/1991,
  editor    = {Christian Choffrut and
               Matthias Jantzen},
  title     = {STACS 91, 8th Annual Symposium on Theoretical Aspects of
               Computer Science, Hamburg, Germany, February 14-16, 1991,
               Proceedings},
  booktitle = {STACS},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {480},
  year      = {1991},
  isbn      = {3-540-53709-0},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}