@article{RM_1982_37_5_a31,
     author = {Yu. G. Borisovich and S. G. Krein and E. M. Semenov},
     title = {XVI {Voronezh} {Winter} {Mathematical} {School}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1982},
     volume = {37},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1982_37_5_a31/}
}