@article{697661,
      recid = {697661},
      author = {Kaczorek, T. and Sajewski, Lukasz.},
      title = {The realization problem for positive and fractional  systems [electronic resource] /},
      publisher = {Springer,},
      address = {Cham, Switzerland :},
      pages = {1 online resource},
      year = {2014},
      url = {http://library.usi.edu/record/697661},
}