@article{434345,
      author = {Everett, Allen. and Roman, Thomas.},
      url = {http://library.usi.edu/record/434345},
      title = {Time travel and warp drives : a scientific guide to  shortcuts through time and space /},
      publisher = {The University of Chicago Press,},
      recid = {434345},
      pages = {268 p. :},
      address = {Chicago ;},
      year = {2012},
}