@article{AA_1994_6_4_a6,
     author = {M. A. Nudelman},
     title = {Sufficient conditions for the absolute stability of optimal passive scattering systems},
     journal = {Algebra i analiz},
     pages = {187--203},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1994_6_4_a6/}
}