@article{388015,
      author = {Curta, Florin. and Kovalev, Roman.},
      url = {http://library.usi.edu/record/388015},
      title = {The other Europe in the Middle Ages Avars, Bulgars,  Khazars, and Cumans / [electronic resource] :},
      publisher = {Brill,},
      recid = {388015},
      pages = {x, 492 p. :},
      address = {Leiden ;},
      year = {2008},
}