@article{SM_2002_193_6_a0,
     author = {D. Z. Arov and M. A. Nudelman},
     title = {Tests for the~similarity of all minimal passive realizations of
},
     journal = {Sbornik. Mathematics},
     pages = {791--810},
     publisher = {mathdoc},
     volume = {193},
     number = {6},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2002_193_6_a0/}
}