@article{AA_1994_6_4_a5,
     author = {S. A. Nazarov and B. A. Plamenevskii},
     title = {Selfadjoint elliptic problems: scattering and polarization operators on the edges of the boundary},
     journal = {Algebra i analiz},
     pages = {157--186},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_1994_6_4_a5/}
}