@article{720078,
      recid = {720078},
      author = {Burde, Gerhard, and Zieschang, Heiner. and Heusener,  Michael.},
      title = {Knots [electronic resource] /},
      pages = {1 online resource (431 pages) :},
      url = {http://library.usi.edu/record/720078},
}