@article{1415190,
      recid = {1415190},
      author = {Bartelmann, M. L.},
      title = {Theoretical astrophysics : an introduction /},
      publisher = {Wiley-VCH,},
      address = {Weinheim :},
      pages = {1 online resource (xx, 320 pages ) :},
      year = {2013},
      url = {http://library.usi.edu/record/1415190},
}