@article{720197,
      author = {Maidl, Bernhard. and Thewes, Markus. and Maidl, Ulrich.  and David, Sturge. and Frank, Sonja.},
      url = {http://library.usi.edu/record/720197},
      title = {Handbook of tunnel engineering II basics and additional  services for design and construction / [electronic  resource] :},
      recid = {720197},
      pages = {1 online resource (460 pages) :},
}