@article{DE_1975_11_3_a13,
     author = {A. M. Pyzh'yanov},
     title = {Poles for the scattering operator and resonance states for {Maxwell's} system of equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {541--555},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1975_11_3_a13/}
}